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.

A279705 Number of n X 4 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 2
2 4
3 22
4 125
5 717
6 4121
7 23690
8 136181
9 782826
10 4500021
11 25868076
12 148700951
13 854797731
14 4913749086
15 28246366671
16 162372399730
17 933387168180
18 5365515365948
19 30843315747327
20 177300792451846
21 1019202061854748

List of values

[2, 4, 22, 125, 717, 4121, 23690, 136181, 782826, 4500021, 25868076, 148700951, 854797731, 4913749086, 28246366671, 162372399730, 933387168180, 5365515365948, 30843315747327, 177300792451846, 1019202061854748]

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

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