A280175 - cp's OEIS frontend

A280175 Number of nX3 0..1 arrays with no element unequal 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	0
2	12
3	60
4	279
5	1082
6	3931
7	13720
8	46467
9	153650
10	499289
11	1598693
12	5059881
13	15855622
14	49273183
15	152010000
16	466006394
17	1420614227
18	4309242893
19	13013193556
20	39139655092
21	117289714264
22	350310455965
23	1043078536630
24	3097120192877

[0, 12, 60, 279, 1082, 3931, 13720, 46467, 153650, 499289, 1598693, 5059881, 15855622, 49273183, 152010000, 466006394, 1420614227, 4309242893, 13013193556, 39139655092, 117289714264, 350310455965, 1043078536630, 3097120192877]

cp's OEIS Frontend

A280175 Number of nX3 0..1 arrays with no element unequal 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