A233073 - cp's OEIS frontend

A233073 T(n,k)=Number of nXk 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.

n	a(n)
1	1
2	2
3	2
4	5
5	9
6	5
7	14
8	50
9	50
10	14
11	41
12	289
13	582
14	289
15	41
16	122
17	1682
18	6854
19	6854
20	1682
21	122
22	365
23	9801
24	80811
25	164495
26	80811
27	9801
28	365
29	1094
30	57122
31	952869
32	3957778
33	3957778
34	952869
35	57122
36	1094
37	3281
38	332929
39	11235652
40	95264272
41	194998895
42	95264272

[1, 2, 2, 5, 9, 5, 14, 50, 50, 14, 41, 289, 582, 289, 41, 122, 1682, 6854, 6854, 1682, 122, 365, 9801, 80811, 164495, 80811, 9801, 365, 1094, 57122, 952869, 3957778, 3957778, 952869, 57122, 1094, 3281, 332929, 11235652, 95264272, 194998895, 95264272]

cp's OEIS Frontend

A233073 T(n,k)=Number of nXk 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.

Table of values

List of values