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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.

A246123 Number of inequivalent n X n matrices with entries from [7], where equivalence means permutations of rows or columns or the symbol set.

Table of values

n a(n)
0 1
1 1
2 9
3 773
4 12872565
5 18591188894392
6 1015303397880332132695
7 2006943506669869627232430791792
8 148870004307406359229098552180494085417700
9 427548526344388851318876075291587420840143834762159765

List of values

[1, 1, 9, 773, 12872565, 18591188894392, 1015303397880332132695, 2006943506669869627232430791792, 148870004307406359229098552180494085417700, 427548526344388851318876075291587420840143834762159765]

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

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