A218836 - cp's OEIS frontend

A218836 Unmatched value maps: number of n X 2 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 n X 2 array.

n	a(n)
0	1
1	2
2	7
3	21
4	65
5	200
6	616
7	1897
8	5842
9	17991
10	55405
11	170625
12	525456
13	1618192
14	4983377
15	15346786
16	47261895
17	145547525
18	448227521
19	1380359512
20	4250949112
21	13091204281
22	40315615410
23	124155792775
24	382349636061
25	1177482265857
26	3626169232672
27	11167134898976

[1, 2, 7, 21, 65, 200, 616, 1897, 5842, 17991, 55405, 170625, 525456, 1618192, 4983377, 15346786, 47261895, 145547525, 448227521, 1380359512, 4250949112, 13091204281, 40315615410, 124155792775, 382349636061, 1177482265857, 3626169232672, 11167134898976]

cp's OEIS Frontend

A218836 Unmatched value maps: number of n X 2 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 n X 2 array.

Table of values

List of values