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.

A215792 Number of permutations of 0..floor((6*n-1)/2) on even squares of an 6*n array such that each row, column, diagonal and (downwards) antidiagonal of even squares is increasing.

Table of values

n a(n)
1 1
2 1
3 1
4 4
5 50
6 458
7 15485
8 234217
9 14296434
10 297246092
11 26970790176

List of values

[1, 1, 1, 4, 50, 458, 15485, 234217, 14296434, 297246092, 26970790176]

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

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