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.

A283624 Number of {0,1} n X n matrices with no rows or columns in which all entries are the same.

Table of values

n a(n)
0 1
1 0
2 2
3 102
4 22874
5 17633670
6 46959933962
7 451575174961302
8 16271255119687320314
9 2253375946574190518740230
10 1219041140314101911449662059402
11 2601922592659455476330065914740044182
12 22040870572750372076278589658097827953983034

List of values

[1, 0, 2, 102, 22874, 17633670, 46959933962, 451575174961302, 16271255119687320314, 2253375946574190518740230, 1219041140314101911449662059402, 2601922592659455476330065914740044182, 22040870572750372076278589658097827953983034]