A231398 - cp's OEIS frontend

A231398 Number of (2+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

n	a(n)
1	4
2	8
3	38
4	90
5	363
6	1163
7	3985
8	14650
9	50088
10	185178
11	665415
12	2425915
13	8953631
14	32773916
15	121530364
16	449147910
17	1665804417
18	6189859849
19	22993326811
20	85585457988
21	318520365520
22	1186296435208
23	4419902305187
24	16469639460901

[4, 8, 38, 90, 363, 1163, 3985, 14650, 50088, 185178, 665415, 2425915, 8953631, 32773916, 121530364, 449147910, 1665804417, 6189859849, 22993326811, 85585457988, 318520365520, 1186296435208, 4419902305187, 16469639460901]

cp's OEIS Frontend

A231398 Number of (2+1)X(n+1) 0..2 arrays with no element unequal 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