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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A223597 Petersen graph (8,2) coloring a rectangular array: number of nX6 0..15 arrays where 0..15 label nodes of a graph with edges 0,1 0,8 8,14 8,10 1,2 1,9 9,15 9,11 2,3 2,10 10,12 3,4 3,11 11,13 4,5 4,12 12,14 5,6 5,13 13,15 6,7 6,14 7,0 7,15 and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an edge of this graph.

Table of values

n a(n)
1 3888
2 156592
3 9902320
4 755683024
5 63079247600
6 5493636282928
7 488183756623568
8 43794253024609968
9 3946123141338476848
10 356301644338823049296
11 32201832268642094966384
12 2911632403841248652157872

List of values

[3888, 156592, 9902320, 755683024, 63079247600, 5493636282928, 488183756623568, 43794253024609968, 3946123141338476848, 356301644338823049296, 32201832268642094966384, 2911632403841248652157872]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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