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.

A269291 Number of 3 X n 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 64
2 2592
3 62748
4 1363572
5 27788292
6 544118148
7 10363900428
8 193439931300
9 3554908340004
10 64533455294868
11 1159917367905324
12 20677732339697748
13 366084589527655236
14 6443257191283855908
15 112830460117748363340

List of values

[64, 2592, 62748, 1363572, 27788292, 544118148, 10363900428, 193439931300, 3554908340004, 64533455294868, 1159917367905324, 20677732339697748, 366084589527655236, 6443257191283855908, 112830460117748363340]

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

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