A218843 - cp's OEIS frontend

A218843 Unmatched value maps: number of 2 X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 2 X n array.

n	a(n)
1	1
2	7
3	20
4	57
5	156
6	438
7	1220
8	3398
9	9468
10	26380
11	73496
12	204780
13	570556
14	1589672
15	4429140
16	12340436
17	34382820
18	95797176
19	266909376
20	743660900
21	2071982512
22	5772942284
23	16084528900
24	44814595084
25	124862092120
26	347889834096

[1, 7, 20, 57, 156, 438, 1220, 3398, 9468, 26380, 73496, 204780, 570556, 1589672, 4429140, 12340436, 34382820, 95797176, 266909376, 743660900, 2071982512, 5772942284, 16084528900, 44814595084, 124862092120, 347889834096]

cp's OEIS Frontend

A218843 Unmatched value maps: number of 2 X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 2 X n array.

Table of values

List of values