cp's OEIS Frontend

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.

A223692 T(n,k)=Petersen graph (8,2) coloring a rectangular array: number of nXk 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 or antidiagonal neighbor moves along an edge of this graph.

Table of values

n a(n)
1 16
2 48
3 256
4 144
5 432
6 4096
7 432
8 2304
9 3888
10 65536
11 1296
12 12384
13 37008
14 34992
15 1048576
16 3888
17 66816
18 363600
19 595584
20 314928
21 16777216
22 11664
23 361440
24 3788640
25 10817856
26 9594000
27 2834352
28 268435456
29 34992
30 1958400
31 40075632
32 223096320
33 324280368
34 154616832
35 25509168
36 4294967296

List of values

[16, 48, 256, 144, 432, 4096, 432, 2304, 3888, 65536, 1296, 12384, 37008, 34992, 1048576, 3888, 66816, 363600, 595584, 314928, 16777216, 11664, 361440, 3788640, 10817856, 9594000, 2834352, 268435456, 34992, 1958400, 40075632, 223096320, 324280368, 154616832, 25509168, 4294967296]

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

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