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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.

A223504 T(n,k)=Petersen graph (3,1) coloring a rectangular array: number of nXk 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,3 3,5 3,4 1,2 1,4 4,5 2,0 2,5 and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an edge of this graph, with the array starting at 0.

Table of values

n a(n)
1 1
2 3
3 6
4 9
5 19
6 36
7 27
8 115
9 121
10 216
11 81
12 631
13 1519
14 771
15 1296
16 243
17 3539
18 16323
19 20115
20 4913
21 7776
22 729
23 19759
24 182901
25 426359
26 266419
27 31307
28 46656
29 2187
30 110427
31 2030665
32 9685063
33 11148439
34 3528715
35 199497
36 279936
37 6561
38 617015
39 22598167

List of values

[1, 3, 6, 9, 19, 36, 27, 115, 121, 216, 81, 631, 1519, 771, 1296, 243, 3539, 16323, 20115, 4913, 7776, 729, 19759, 182901, 426359, 266419, 31307, 46656, 2187, 110427, 2030665, 9685063, 11148439, 3528715, 199497, 279936, 6561, 617015, 22598167]

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

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