A204978 - cp's OEIS frontend

A204978 T(n,k)=Number of nXk 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.

n	a(n)
1	1
2	2
3	2
4	4
5	14
6	4
7	11
8	96
9	96
10	11
11	30
12	726
13	1217
14	726
15	30
16	82
17	5400
18	16813
19	16813
20	5400
21	82
22	224
23	40344
24	226908
25	451468
26	226908
27	40344
28	224
29	612
30	301056
31	3074889
32	11815256
33	11815256
34	3074889
35	301056
36	612
37	1672
38	2247264
39	41618941
40	311275169
41	594430765

[1, 2, 2, 4, 14, 4, 11, 96, 96, 11, 30, 726, 1217, 726, 30, 82, 5400, 16813, 16813, 5400, 82, 224, 40344, 226908, 451468, 226908, 40344, 224, 612, 301056, 3074889, 11815256, 11815256, 3074889, 301056, 612, 1672, 2247264, 41618941, 311275169, 594430765]

cp's OEIS Frontend

A204978 T(n,k)=Number of nXk 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..2 introduced in row major order.

Table of values

List of values