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.

A376747 Number of non-isomorphic colorings of a toroidal n X n grid using exactly two swappable colors.

Table of values

n a(n)
1 0
2 4
3 31
4 2107
5 671103
6 954459519
7 5744387279871
8 144115188277194943
9 14925010118699132241919
10 6338253001141180784480847871
11 10985355337065420437221545952731135
12 77433143050453552574875182200691073835007
13 2213872302702432822841084717014014514981767643135
14 256208234097415541381052629523530965709132732687965552639

List of values

[0, 4, 31, 2107, 671103, 954459519, 5744387279871, 144115188277194943, 14925010118699132241919, 6338253001141180784480847871, 10985355337065420437221545952731135, 77433143050453552574875182200691073835007, 2213872302702432822841084717014014514981767643135, 256208234097415541381052629523530965709132732687965552639]

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

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