A195214 - cp's OEIS frontend

A195214 Number of lower triangles of an n X n integer array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by 2 or less and triangles differing by a constant counted only once.

n	a(n)
1	1
2	19
3	1047
4	176471
5	92031109
6	149824887097
7	764465228592699
8	12257873230432791803
9	618761146282316127586145
10	98449515559059678433241253935
11	49416410864494101822050533251357921

[1, 19, 1047, 176471, 92031109, 149824887097, 764465228592699, 12257873230432791803, 618761146282316127586145, 98449515559059678433241253935, 49416410864494101822050533251357921]

cp's OEIS Frontend

A195214 Number of lower triangles of an n X n integer array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by 2 or less and triangles differing by a constant counted only once.

Table of values

List of values