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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.

A172478 The number of ways to dissect an n X n square into polyominoes of size n and then fill it to make it a Latin square, with the extra requirement that each number occurs within each polyomino exactly once.

Table of values

n a(n)
1 1
2 4
3 72
4 13872
5 11762160
6 234312972480
7 41182101508222080

List of values

[1, 4, 72, 13872, 11762160, 234312972480, 41182101508222080]

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

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