A208051 - cp's OEIS frontend

A208051 Number of n X 3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).

n	a(n)
1	2
2	15
3	716
4	83440
5	18171918
6	6423127757
7	3376465219485
8	2486327138729353
9	2454996141671330713
10	3143641561804718358884
11	5084413934903476204054959
12	10166624612435356414640715276
13	24691194409056203926713355839051

[2, 15, 716, 83440, 18171918, 6423127757, 3376465219485, 2486327138729353, 2454996141671330713, 3143641561804718358884, 5084413934903476204054959, 10166624612435356414640715276, 24691194409056203926713355839051]

cp's OEIS Frontend

A208051 Number of n X 3 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).

Table of values

List of values