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.

A303246 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 32
2 10
3 494
4 160
5 5158
6 7823
7 90728
8 421983
9 3251872
10 23282610
11 175055099
12 1340813633
13 10458371398
14 80508035855
15 634752883979
16 4921023633814
17 38687814219982
18 301834276228660
19 2365262885917076
20 18505872453909054

List of values

[32, 10, 494, 160, 5158, 7823, 90728, 421983, 3251872, 23282610, 175055099, 1340813633, 10458371398, 80508035855, 634752883979, 4921023633814, 38687814219982, 301834276228660, 2365262885917076, 18505872453909054]

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

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