A208632 - cp's OEIS frontend

A208632 Number of n X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

n	a(n)
1	1
2	5
3	32
4	225
5	1652
6	12404
7	94320
8	722733
9	5565560
10	43005391
11	333132384
12	2585476348
13	20097106512
14	156418938680
15	1218807197408
16	9506457334965
17	74216779041840
18	579903491112365
19	4534776883051800
20	35488119754971345

[1, 5, 32, 225, 1652, 12404, 94320, 722733, 5565560, 43005391, 333132384, 2585476348, 20097106512, 156418938680, 1218807197408, 9506457334965, 74216779041840, 579903491112365, 4534776883051800, 35488119754971345]

cp's OEIS Frontend

A208632 Number of n X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

List of values