A208093 - cp's OEIS frontend

A208093 Number of nX3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any horizontal, diagonal or antidiagonal neighbor (colorings ignoring permutations of colors).

n	a(n)
1	2
2	30
3	1573
4	192328
5	43366459
6	15769674462
7	8494585220016
8	6391850672195207
9	6435536606760976374
10	8388789053759733374255
11	13792349692923790472807338
12	28002764873470436036725295426
13	68986219453948522377865096287773

[2, 30, 1573, 192328, 43366459, 15769674462, 8494585220016, 6391850672195207, 6435536606760976374, 8388789053759733374255, 13792349692923790472807338, 28002764873470436036725295426, 68986219453948522377865096287773]

cp's OEIS Frontend

A208093 Number of nX3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any horizontal, diagonal or antidiagonal neighbor (colorings ignoring permutations of colors).

Table of values

List of values