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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.

A279970 Number of n X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 0
2 3
3 50
4 1922
5 124030
6 14787217
7 3444870482
8 1641425782980
9 1628526202127628
10 3404399281023205196
11 15152580196285407820510

List of values

[0, 3, 50, 1922, 124030, 14787217, 3444870482, 1641425782980, 1628526202127628, 3404399281023205196, 15152580196285407820510]

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

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