A222587 - cp's OEIS frontend

A222587 T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	4
8	5
9	5
10	4
11	5
12	18
13	9
14	18
15	5
16	14
17	59
18	112
19	112
20	59
21	14
22	17
23	200
24	426
25	1087
26	426
27	200
28	17
29	70
30	820
31	4790
32	11442
33	11442
34	4790
35	820
36	70
37	89
38	3014
39	18007
40	128213
41	111951
42	128213
43	18007
44	3014
45	89
46	326
47	11364
48	208768
49	1471412
50	3778560
51	3778560
52	1471412

[1, 1, 1, 1, 1, 1, 4, 5, 5, 4, 5, 18, 9, 18, 5, 14, 59, 112, 112, 59, 14, 17, 200, 426, 1087, 426, 200, 17, 70, 820, 4790, 11442, 11442, 4790, 820, 70, 89, 3014, 18007, 128213, 111951, 128213, 18007, 3014, 89, 326, 11364, 208768, 1471412, 3778560, 3778560, 1471412]

cp's OEIS Frontend

A222587 T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

Table of values

List of values