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.

A269008 Number of n X 5 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.

Table of values

n a(n)
1 10
2 88
3 1078
4 10976
5 109058
6 1053432
7 10002542
8 93733440
9 869397882
10 7996744280
11 73044076454
12 663272676512
13 5992284643698
14 53897945082104
15 482908211678430
16 4311837258739840
17 38381936117267690
18 340717648957870424

List of values

[10, 88, 1078, 10976, 109058, 1053432, 10002542, 93733440, 869397882, 7996744280, 73044076454, 663272676512, 5992284643698, 53897945082104, 482908211678430, 4311837258739840, 38381936117267690, 340717648957870424]

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

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