Graphical Designs on the First Loupekines Snark


Graph Info
Vertices 22
Edges 33
Regularity 3
Eigenspaces 14


Spectrum from low to high frequency:

`0, -1.91069, -1.7810, -0.2510^2, -1.6667^3, -0.3333, -1.6265^2,`
`-0.3955, -0.4893^2, -1.2673^2, -0.7560, -0.8150^2, -1.1569, -0.8842^2`

first Loupekines Snark


Design Info
`k`-graphical design
`k=2`
Efficacy
`1/2`
Optimal yes
Maximal yes
Extremal no
1-Neighborhood is the graph no



Get the code or see Wikipedia for more about the Loupekines snarks.