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.

A231766 Number of (2+1)X(n+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one.

Table of values

n a(n)
1 16
2 136
3 625
4 2976
5 15625
6 84817
7 440896
8 2280000
9 11902500
10 62359187
11 325513764
12 1697812287
13 8864034201
14 46293362688
15 241690224400
16 1261713925692
17 6587266165489
18 34392457554368
19 179559008401369
20 937448116348715

List of values

[16, 136, 625, 2976, 15625, 84817, 440896, 2280000, 11902500, 62359187, 325513764, 1697812287, 8864034201, 46293362688, 241690224400, 1261713925692, 6587266165489, 34392457554368, 179559008401369, 937448116348715]

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

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