A071589  Numbers n such that Reversal(n) > n.

Very intense sharp pitched sound.  Some rhythm.

Residue counts:
2   [199556, 249445]
3   [149667, 149667, 149667]
4   [99778, 124445, 99778, 125000]
5   [49889, 66445, 88667, 110889, 133111]
6   [66522, 83150, 66517, 83145, 66517, 83150]
7   [64135, 64163, 64150, 64151, 64138, 64128, 64136]
8   [49889, 62220, 49889, 62498, 49889, 62225, 49889, 62502]
9   [49889, 49889, 49889, 49889, 49889, 49889, 49889, 49889, 49889]
10   [0, 5445, 16556, 27667, 38778, 49889, 61000, 72111, 83222, 94333]
11   [40365, 41200, 41126, 41051, 40976, 40901, 40826, 40751, 40676, 40601, 40528]
12   [33259, 41482, 33257, 41664, 33259, 41482, 33263, 41668, 33260, 41481, 33258, 41668]

Density information:
A(x) at x=10,100,1000,...:
[0, 36, 396, 4401, 44451, 449001]

A(x)/x at x=10,100,1000,...:
0.0,0.36,0.396,0.4401,0.44451,0.449001,


The most prominent non-uniformity in the residue counts is with modulus 10: numbers
congruent to 0 modulo 10 are not in this sequence.  We do see a strong spectral line
at 44100/10=4410 hz.

There is also a set of spectral lines that are all multiples of 44100/100=441 hz.  
Modulo 100, there are no numbers congruent to 0,10,20,etc. (i.e., congruent to 0 mod 10).

Density appears to have a non-zero limit.  That would be interesting to look into.

-- Matthew Conroy