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.

A215874 Number of permutations of 0..floor((6*n-2)/2) on odd squares of an 6Xn array such that each row, column, diagonal and (downwards) antidiagonal of odd squares is increasing.

Table of values

n a(n)
1 1
2 1
3 1
4 8
5 50
6 1233
7 15485
8 767560
9 14296434
10 1124811332

List of values

[1, 1, 1, 8, 50, 1233, 15485, 767560, 14296434, 1124811332]

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

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