A279972 - cp's OEIS frontend

A279972 Number of n X 3 0..1 arrays with no element equal to a strict majority of its horizontal 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	9
3	50
4	296
5	1650
6	8666
7	43543
8	211650
9	1002602
10	4652327
11	21225237
12	95473540
13	424318824
14	1866436977
15	8136431834
16	35191126234
17	151149336828
18	645183934470
19	2738696392197
20	11567109056460
21	48632928912442
22	203627897130121

[0, 9, 50, 296, 1650, 8666, 43543, 211650, 1002602, 4652327, 21225237, 95473540, 424318824, 1866436977, 8136431834, 35191126234, 151149336828, 645183934470, 2738696392197, 11567109056460, 48632928912442, 203627897130121]

cp's OEIS Frontend

A279972 Number of n X 3 0..1 arrays with no element equal to a strict majority of its horizontal 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