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.

A256070 Number of inequivalent n X n matrices with entry set {1,...,n}, where equivalence means permutations of rows or columns.

Table of values

n a(n)
0 1
1 1
2 5
3 633
4 7520386
5 20435529209470
6 19740907671252532135134
7 10077866175951324796988844418739012
8 3855174405512686506030123555473042980898031518176
9 1492231601551989489818761885384738502799149242563553845787532236092

List of values

[1, 1, 5, 633, 7520386, 20435529209470, 19740907671252532135134, 10077866175951324796988844418739012, 3855174405512686506030123555473042980898031518176, 1492231601551989489818761885384738502799149242563553845787532236092]