A231420 - cp's OEIS frontend

A231420 Number of (1+1) X (n+1) 0..2 arrays with no element equal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

n	a(n)
1	9
2	71
3	514
4	3838
5	28486
6	212060
7	1578180
8	11748804
9	87465304
10	651171800
11	4847955288
12	36093104816
13	268714229264
14	2000587354768
15	14894452176096
16	110889806477664
17	825579209354848
18	6146471657514944
19	45760738536130624

[9, 71, 514, 3838, 28486, 212060, 1578180, 11748804, 87465304, 651171800, 4847955288, 36093104816, 268714229264, 2000587354768, 14894452176096, 110889806477664, 825579209354848, 6146471657514944, 45760738536130624]

cp's OEIS Frontend

A231420 Number of (1+1) X (n+1) 0..2 arrays with no element equal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

Table of values

List of values