A219137 - cp's OEIS frontend

A219137 Unchanging value maps: number of n X 3 binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 n X 3 array.

n	a(n)
1	4
2	18
3	78
4	331
5	1400
6	5949
7	25277
8	107353
9	455938
10	1936500
11	8224877
12	34933256
13	148370893
14	630171269
15	2676507659
16	11367850562
17	48282330086
18	205068091043
19	870979546682
20	3699285278069
21	15711863292777
22	66732525229601

[4, 18, 78, 331, 1400, 5949, 25277, 107353, 455938, 1936500, 8224877, 34933256, 148370893, 630171269, 2676507659, 11367850562, 48282330086, 205068091043, 870979546682, 3699285278069, 15711863292777, 66732525229601]

cp's OEIS Frontend

A219137 Unchanging value maps: number of n X 3 binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 n X 3 array.

Table of values

List of values