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.

A279711 Number of 4Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 8
2 13
3 42
4 125
5 385
6 1195
7 3751
8 11823
9 37385
10 118390
11 375114
12 1188640
13 3766483
14 11934903
15 37818803
16 119840838
17 379760607
18 1203429425
19 3813594984
20 12085090793
21 38297085876
22 121361690893
23 384589567332
24 1218746480798
25 3862151137416

List of values

[8, 13, 42, 125, 385, 1195, 3751, 11823, 37385, 118390, 375114, 1188640, 3766483, 11934903, 37818803, 119840838, 379760607, 1203429425, 3813594984, 12085090793, 38297085876, 121361690893, 384589567332, 1218746480798, 3862151137416]

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

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