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.

A222190 Number of toroidal n X 4 binary arrays, allowing rotation and/or reflection of the rows and/or the columns.

Table of values

n a(n)
1 6
2 34
3 158
4 1459
5 14676
6 184854
7 2445918
8 33888844
9 479268556
10 6886509940
11 100056170778
12 1466749421254
13 21657254505396
14 321725243553514
15 4804133557262316
16 72059797641376804
17 1085119161923382576
18 16397231016301629254
19 248546552679488856498

List of values

[6, 34, 158, 1459, 14676, 184854, 2445918, 33888844, 479268556, 6886509940, 100056170778, 1466749421254, 21657254505396, 321725243553514, 4804133557262316, 72059797641376804, 1085119161923382576, 16397231016301629254, 248546552679488856498]

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

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