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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.

A286215 Number of n X 7 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 3
2 3468
3 123541
4 30004158
5 1569283128
6 380797680269
7 23594688741164
8 5201563721481604
9 366234192215237315
10 73710966822498902306
11 5745557094114966956143
12 1070211615398838835193976

List of values

[3, 3468, 123541, 30004158, 1569283128, 380797680269, 23594688741164, 5201563721481604, 366234192215237315, 73710966822498902306, 5745557094114966956143, 1070211615398838835193976]

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

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