A197431 - cp's OEIS frontend

A197431 T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.

n	a(n)
1	1
2	3
3	3
4	4
5	9
6	4
7	5
8	20
9	20
10	5
11	9
12	71
13	68
14	71
15	9
16	16
17	227
18	448
19	448
20	227
21	16
22	25
23	664
24	2152
25	5197
26	2152
27	664
28	25
29	39
30	2107
31	10684
32	43909
33	43909
34	10684
35	2107
36	39
37	64
38	6675
39	55567
40	410456
41	720447
42	410456
43	55567
44	6675
45	64
46	105
47	20696
48	280544
49	4017895
50	11769456

[1, 3, 3, 4, 9, 4, 5, 20, 20, 5, 9, 71, 68, 71, 9, 16, 227, 448, 448, 227, 16, 25, 664, 2152, 5197, 2152, 664, 25, 39, 2107, 10684, 43909, 43909, 10684, 2107, 39, 64, 6675, 55567, 410456, 720447, 410456, 55567, 6675, 64, 105, 20696, 280544, 4017895, 11769456]

cp's OEIS Frontend

A197431 T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.

Table of values

List of values