A207981 - cp's OEIS frontend

A207981 T(n,k)=Number of n X k nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any diagonal or antidiagonal neighbor (colorings ignoring permutations of colors).

n	a(n)
1	1
2	2
3	2
4	5
5	7
6	5
7	15
8	67
9	67
10	15
11	52
12	1080
13	4192
14	1080
15	52
16	203
17	25287
18	587208
19	587208
20	25287
21	203
22	877
23	794545
24	147512732
25	953124784
26	147512732
27	794545
28	877
29	4140
30	31858034
31	58668937932
32	3410310590912
33	3410310590912
34	58668937932
35	31858034

[1, 2, 2, 5, 7, 5, 15, 67, 67, 15, 52, 1080, 4192, 1080, 52, 203, 25287, 587208, 587208, 25287, 203, 877, 794545, 147512732, 953124784, 147512732, 794545, 877, 4140, 31858034, 58668937932, 3410310590912, 3410310590912, 58668937932, 31858034]

cp's OEIS Frontend

A207981 T(n,k)=Number of n X k nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any diagonal or antidiagonal neighbor (colorings ignoring permutations of colors).

Table of values

List of values