A280554 - cp's OEIS frontend

A280554 T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	9
9	9
10	1
11	2
12	34
13	50
14	34
15	2
16	6
17	87
18	144
19	144
20	87
21	6
22	13
23	194
24	325
25	382
26	325
27	194
28	13
29	29
30	400
31	670
32	832
33	832
34	670
35	400
36	29
37	60
38	790
39	1316
40	1666
41	1764
42	1666
43	1316
44	790
45	60
46	122
47	1511
48	2502
49	3182
50	3438
51	3438
52	3182
53	2502
54	1511
55	122
56	241
57	2830
58	4654

[0, 0, 0, 0, 0, 0, 1, 9, 9, 1, 2, 34, 50, 34, 2, 6, 87, 144, 144, 87, 6, 13, 194, 325, 382, 325, 194, 13, 29, 400, 670, 832, 832, 670, 400, 29, 60, 790, 1316, 1666, 1764, 1666, 1316, 790, 60, 122, 1511, 2502, 3182, 3438, 3438, 3182, 2502, 1511, 122, 241, 2830, 4654]

cp's OEIS Frontend

A280554 T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Table of values

List of values