A279488 - cp's OEIS frontend

A279488 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	1
2	0
3	5
4	18
5	68
6	235
7	801
8	2678
9	8777
10	28343
11	90455
12	285812
13	895302
14	2783602
15	8598096
16	26404831
17	80671908
18	245328807
19	742945582
20	2241375512
21	6738536925
22	20194613731
23	60344058090
24	179828931783
25	534560389757
26	1585341579329
27	4691443265544

[1, 0, 5, 18, 68, 235, 801, 2678, 8777, 28343, 90455, 285812, 895302, 2783602, 8598096, 26404831, 80671908, 245328807, 742945582, 2241375512, 6738536925, 20194613731, 60344058090, 179828931783, 534560389757, 1585341579329, 4691443265544]

cp's OEIS Frontend

A279488 Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values