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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.

A285179 Number of disjoint non-ordered pairs of n^2 X n^2 S-permutation matrices.

Table of values

n a(n)
1 0
2 56
3 419250816
4 2294248126968596791296
5 71871209790288983974921874964480000000000
6 70222282105561329499166350697268240329817049897201827840000000000000

List of values

[0, 56, 419250816, 2294248126968596791296, 71871209790288983974921874964480000000000, 70222282105561329499166350697268240329817049897201827840000000000000]

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

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