| OIES id |
description |
sound player |
|
creator |
quarter
|
tags
|
comments
|
| A000217 |
triangular numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
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| A000290 |
square numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A000326 |
pentagonal numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A000384 |
hexagonal numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
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| A000567 |
octagonal numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
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| A002144 |
primes of the form 4m+1 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A002145 |
primes of the form 4m+3 |
|
download |
Jesse Rivera |
Aut2016 |
|
|
| A000959 |
lucky numbers |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A045954 |
even lucky |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A003309 |
Ludic numbers |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A040040 |
averages of twin prime pairs, divided by 2 |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
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| A277723 |
floor of n t^3, t = 1.839286755... |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A000201 |
floor of n phi, phi=(1+sqrt(5))/2 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A108587 |
floor of n/(1-sin(1)) |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A050504 |
floor of n log n |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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floor of n log n, base 10 log |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
|
| A248360 |
floor of 1/(1 - cos(Pi/n)) |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A001614 |
Connell sequence: 1 odd, 2 even, 3 odd, ... |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A045928 |
generalized Connell sequence C_{3,2} |
|
download |
Jesse Rivera |
Aut2016 |
|
|
| A122793 |
Connell sum sequence (partial sums of the Connell
sequence) |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A033293 |
A Connell-like sequence: take 1 number = 1 (mod Q), 2
numbers = 2 (mod Q), 3 numbers = 3 (mod Q), etc., where Q
= 8 |
|
download |
Jesse Rivera |
Aut2016 |
|
|
| A033291 |
A Connell-like sequence: take the first multiple of 1,
the next 2 multiples of 2, the next 3 multiples of 3, etc.
|
|
download |
Jesse Rivera |
Aut2016 |
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| A006046 |
total number of odd numbers in the first n rows of
Pascal's triangle |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A078177 |
composite n with integer prime factor average |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A070003 |
numbers divisible by the square of their largest prime
factor |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A054010 |
numbers divisible by the number of their proper divisors |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A033950 |
numbers divisible by the number of their divisors |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A246294 |
numbers n such that sin(n) < sin(n+1) > sin(n+2) |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A277096 |
n such that sin(n)<0 and sin(n+2)<0 |
|
download |
Jesse Rivera |
Aut2016 |
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| A004084 |
tan n >0 and tan(n-1)<=0 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A070753 |
primes p such that sin(p) < 0 |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
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| A000059 |
n such that (2n)^4+1 is prime |
|
download |
Xin Li |
Aut2016 |
|
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| A256249 |
partial sums of the sequence of solutions to the
Josephus problem |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A003325 |
sums of two positive cubes |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A024975 |
sums of three positive cubes |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A004431 |
sums of 2 distinct nonzero squares |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A002088 |
sums of totient function: Sum_{k=1..n} phi(k) |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A078972 |
brilliant numbers |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A006995 |
palindromes in base 2 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A014190 |
palindromes in base 3 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A014192 |
palindromes in base 4 |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A077436 |
sums of binary digits of n and n^2 equal |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A028834 |
sum of digits is a prime |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A028839 |
sum of digits is a square |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A268620 |
sum of digits is a multiple of 4 |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A005349 |
numbers divisible by their digit sum |
|
download |
Jesse Rivera |
Aut2016 |
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| A039918 |
partial sums of the digits of pi |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A007091 |
numbers in base 5 |
|
download |
Jesse Rivera |
Aut2016 |
|
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numbers which contain their digital root among their
digits more than once |
|
download |
Jesse Rivera |
Aut2016 |
|
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| A031443 |
base 2 digitally balanced numbers |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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| A072600 |
numbers which in base 2 have fewer zeros than ones among
their digits |
|
download |
Hannah Claire Van Wyk |
Aut2016 |
|
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