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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.

A284454 Number of n X 7 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 28
2 0
3 278315
4 12957944
5 3478866516
6 197373621124
7 45913351929099
8 3020610942888634
9 635171432700031740
10 46935468157115829048
11 9070472121517777538083
12 735727339860385496580626

List of values

[28, 0, 278315, 12957944, 3478866516, 197373621124, 45913351929099, 3020610942888634, 635171432700031740, 46935468157115829048, 9070472121517777538083, 735727339860385496580626]

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

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