A231265 - cp's OEIS frontend

A231265 Number of (3+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

n	a(n)
1	22
2	89
3	304
4	1253
5	5109
6	21894
7	94234
8	411978
9	1804685
10	7941968
11	34969518
12	154177482
13	679856170
14	2999022193
15	13230140405
16	58371368067
17	257539346061
18	1136325839478
19	5013778949950
20	22122400344087
21	97611358054570

[22, 89, 304, 1253, 5109, 21894, 94234, 411978, 1804685, 7941968, 34969518, 154177482, 679856170, 2999022193, 13230140405, 58371368067, 257539346061, 1136325839478, 5013778949950, 22122400344087, 97611358054570]

cp's OEIS Frontend

A231265 Number of (3+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

Table of values

List of values