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.

A207812 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 0 1 vertically.

Table of values

n a(n)
1 42
2 1764
3 14406
4 212814
5 2472540
6 31569510
7 388134978
8 4844843724
9 60105117534
10 747536620446
11 9287588538564
12 115441611327546
13 1434634623961938
14 17830155700946568
15 221591726286572670
16 2753968042158084066

List of values

[42, 1764, 14406, 212814, 2472540, 31569510, 388134978, 4844843724, 60105117534, 747536620446, 9287588538564, 115441611327546, 1434634623961938, 17830155700946568, 221591726286572670, 2753968042158084066]

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

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