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.

A207766 Number of 6 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 21
2 441
3 1087
4 6459
5 21547
6 56651
7 235872
8 862146
9 2629798
10 9529570
11 34708948
12 114255562
13 396908066
14 1416972222
15 4828733870
16 16634895736
17 58487207221
18 201993811973
19 696619145912
20 2429011369708
21 8423471768055
22 29119549204363

List of values

[21, 441, 1087, 6459, 21547, 56651, 235872, 862146, 2629798, 9529570, 34708948, 114255562, 396908066, 1416972222, 4828733870, 16634895736, 58487207221, 201993811973, 696619145912, 2429011369708, 8423471768055, 29119549204363]

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

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