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.

A231943 Number of 4Xn 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

Table of values

n a(n)
1 256
2 1328
3 152180
4 11159202
5 691418144
6 35573826030
7 2011419734476
8 124582053082101
9 7653265481401592
10 452142751713371321
11 26462994900702111962
12 1569385399161912987654
13 93821782986385180580504

List of values

[256, 1328, 152180, 11159202, 691418144, 35573826030, 2011419734476, 124582053082101, 7653265481401592, 452142751713371321, 26462994900702111962, 1569385399161912987654, 93821782986385180580504]

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

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