A251149 - cp's OEIS frontend

A251149 T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.

n	a(n)
1	13
2	27
3	27
4	53
5	49
6	53
7	107
8	87
9	87
10	107
11	213
12	161
13	143
14	161
15	213
16	427
17	299
18	247
19	247
20	299
21	427
22	853
23	565
24	433
25	401
26	433
27	565
28	853
29	1707
30	1075
31	777
32	667
33	667
34	777
35	1075
36	1707
37	3413
38	2065
39	1413
40	1141
41	1061
42	1141
43	1413
44	2065
45	3413
46	6827
47	3991
48	2607
49	1987
50	1743

[13, 27, 27, 53, 49, 53, 107, 87, 87, 107, 213, 161, 143, 161, 213, 427, 299, 247, 247, 299, 427, 853, 565, 433, 401, 433, 565, 853, 1707, 1075, 777, 667, 667, 777, 1075, 1707, 3413, 2065, 1413, 1141, 1061, 1141, 1413, 2065, 3413, 6827, 3991, 2607, 1987, 1743]

cp's OEIS Frontend

A251149 T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.

Table of values

List of values