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.

A091059 Number of n X n matrices over symbol set {1,2} equivalent under any permutation of row, columns or the symbol set.

Table of values

n a(n)
0 1
1 1
2 5
3 18
4 173
5 2812
6 126446
7 16821330
8 7343033248
9 10733521835504
10 52867612881649880
11 882178115128903807148
12 50227997322259477864188380
13 9837048598740464300126599181536
14 6681839615514161335727724211992609234
15 15867777966020615016155969700335142344866474

List of values

[1, 1, 5, 18, 173, 2812, 126446, 16821330, 7343033248, 10733521835504, 52867612881649880, 882178115128903807148, 50227997322259477864188380, 9837048598740464300126599181536, 6681839615514161335727724211992609234, 15867777966020615016155969700335142344866474]