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.

A002724 Number of inequivalent n X n binary matrices, where equivalence means permutations of rows or columns.

Table of values

n a(n)
0 1
1 2
2 7
3 36
4 317
5 5624
6 251610
7 33642660
8 14685630688
9 21467043671008
10 105735224248507784
11 1764356230257807614296
12 100455994644460412263071692
13 19674097197480928600253198363072
14 13363679231028322645152300040033513414
15 31735555932041230032311939400670284689732948

List of values

[1, 2, 7, 36, 317, 5624, 251610, 33642660, 14685630688, 21467043671008, 105735224248507784, 1764356230257807614296, 100455994644460412263071692, 19674097197480928600253198363072, 13363679231028322645152300040033513414, 31735555932041230032311939400670284689732948]

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

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