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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.

A267283 Number of nX(n+4) arrays of permutations of n+4 copies of 0..n-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo n and the upper left element equal to 0.

Table of values

n a(n)
1 1
2 462
3 13767
4 741057
5 79348962
6 13687472182

List of values

[1, 462, 13767, 741057, 79348962, 13687472182]

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

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