A231264 - cp's OEIS frontend

A231264 Number of (2+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	6
2	15
3	32
4	83
5	211
6	557
7	1471
8	3909
9	10387
10	27617
11	73419
12	195197
13	518979
14	1379897
15	3669051
16	9755861
17	25940515
18	68974961
19	183402043
20	487659661
21	1296670403
22	3447803113
23	9167594299
24	24376331077
25	64815862051
26	172343243361
27	458255009275

[6, 15, 32, 83, 211, 557, 1471, 3909, 10387, 27617, 73419, 195197, 518979, 1379897, 3669051, 9755861, 25940515, 68974961, 183402043, 487659661, 1296670403, 3447803113, 9167594299, 24376331077, 64815862051, 172343243361, 458255009275]

cp's OEIS Frontend

A231264 Number of (2+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