A289645 - cp's OEIS frontend

A289645 Number of n X 2 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

n	a(n)
1	0
2	2
3	11
4	44
5	170
6	642
7	2421
8	9142
9	34572
10	131086
11	498465
12	1900928
13	7269978
14	27879108
15	107183763
16	413052074
17	1595247760
18	6173412924
19	23934713193
20	92955294982
21	361580812792
22	1408539219596
23	5494347736318
24	21458645441596

[0, 2, 11, 44, 170, 642, 2421, 9142, 34572, 131086, 498465, 1900928, 7269978, 27879108, 107183763, 413052074, 1595247760, 6173412924, 23934713193, 92955294982, 361580812792, 1408539219596, 5494347736318, 21458645441596]

cp's OEIS Frontend

A289645 Number of n X 2 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

Table of values

List of values