A204705 - cp's OEIS frontend

A204705 T(n,k) = Number of n X k 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, 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	1417
14	726
15	30
16	82
17	5400
18	22869
19	22869
20	5400
21	82
22	224
23	40344
24	362020
25	835135
26	362020
27	40344
28	224
29	612
30	301056
31	5767683
32	29846373
33	29846373
34	5767683
35	301056
36	612
37	1672
38	2247264
39	91733605
40	1074195735
41	2389914827

[1, 2, 2, 4, 14, 4, 11, 96, 96, 11, 30, 726, 1417, 726, 30, 82, 5400, 22869, 22869, 5400, 82, 224, 40344, 362020, 835135, 362020, 40344, 224, 612, 301056, 5767683, 29846373, 29846373, 5767683, 301056, 612, 1672, 2247264, 91733605, 1074195735, 2389914827]

cp's OEIS Frontend

A204705 T(n,k) = Number of n X k 0..2 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order.

Table of values

List of values