A252998 - cp's OEIS frontend

A252998 Number of n X n nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

n	a(n)
1	0
2	0
3	0
4	1
5	69
6	3072
7	122833
8	4915726
9	204051186
10	8849413857
11	399736867216
12	18698541563923
13	900653139548828
14	44458651801451163
15	2240500172425946056
16	114922424191743943701
17	5985232324581998309113
18	315879022416448194306768

[0, 0, 0, 1, 69, 3072, 122833, 4915726, 204051186, 8849413857, 399736867216, 18698541563923, 900653139548828, 44458651801451163, 2240500172425946056, 114922424191743943701, 5985232324581998309113, 315879022416448194306768]

cp's OEIS Frontend

A252998 Number of n X n nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

Table of values

List of values