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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.

A283030 Number of inequivalent 5 X 5 matrices with entries in {1,2,3,...,n} up to row permutations.

Table of values

n a(n)
0 0
1 1
2 376992
3 7355513529
4 9474438804480
5 2491483056641250
6 237223883948569056
7 11182222570880983622
8 314920519245916176384
9 5983496429606726016735
10 83341666958337500020000
11 902948225666983587054711
12 7950004204832195461143552
13 58805000552467321853765064

List of values

[0, 1, 376992, 7355513529, 9474438804480, 2491483056641250, 237223883948569056, 11182222570880983622, 314920519245916176384, 5983496429606726016735, 83341666958337500020000, 902948225666983587054711, 7950004204832195461143552, 58805000552467321853765064]

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

Content is available under The OEIS End-User License Agreement.