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.

A207768 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically.

Table of values

n a(n)
1 2
2 16
3 84
4 828
5 11950
6 195160
7 6513576
8 364308938
9 15284596082
10 2700018736020
11 787454317079753
12 72216754252055376
13 73270546375550142283
14 119728540088330705652453
15 22114539991379386419299095

List of values

[2, 16, 84, 828, 11950, 195160, 6513576, 364308938, 15284596082, 2700018736020, 787454317079753, 72216754252055376, 73270546375550142283, 119728540088330705652453, 22114539991379386419299095]

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

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