A279262 - cp's OEIS frontend

A279262 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	0
2	4
3	10
4	20
5	38
6	68
7	120
8	208
9	358
10	612
11	1042
12	1768
13	2992
14	5052
15	8514
16	14324
17	24062
18	40364
19	67624
20	113160
21	189150
22	315844
23	526890
24	878160
25	1462368
26	2433268
27	4045690
28	6721748
29	11160278
30	18517652
31	30706392
32	50888128
33	84287062
34	139531812

[0, 4, 10, 20, 38, 68, 120, 208, 358, 612, 1042, 1768, 2992, 5052, 8514, 14324, 24062, 40364, 67624, 113160, 189150, 315844, 526890, 878160, 1462368, 2433268, 4045690, 6721748, 11160278, 18517652, 30706392, 50888128, 84287062, 139531812]

cp's OEIS Frontend

A279262 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values