A198906 - cp's OEIS frontend

A198906 T(n,k) = number of n X k 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.

n	a(n)
1	1
2	1
3	1
4	2
5	4
6	2
7	5
8	33
9	33
10	5
11	15
12	380
13	1211
14	380
15	15
16	51
17	4801
18	50384
19	50384
20	4801
21	51
22	187
23	62004
24	2125425
25	6907736
26	2125425
27	62004
28	187
29	715
30	804833
31	89793204
32	948656912
33	948656912
34	89793204
35	804833
36	715
37	2795
38	10459180
39	3794115705

[1, 1, 1, 2, 4, 2, 5, 33, 33, 5, 15, 380, 1211, 380, 15, 51, 4801, 50384, 50384, 4801, 51, 187, 62004, 2125425, 6907736, 2125425, 62004, 187, 715, 804833, 89793204, 948656912, 948656912, 89793204, 804833, 715, 2795, 10459180, 3794115705]

cp's OEIS Frontend

A198906 T(n,k) = number of n X k 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.

Table of values

List of values