A268639 - cp's OEIS frontend

A268639 T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally or vertically adjacent neighbor totalling two exactly once.

n	a(n)
1	0
2	3
3	3
4	12
5	24
6	12
7	36
8	120
9	120
10	36
11	96
12	504
13	840
14	504
15	96
16	240
17	1944
18	5178
19	5178
20	1944
21	240
22	576
23	7128
24	29772
25	47640
26	29772
27	7128
28	576
29	1344
30	25272
31	163878
32	412740
33	412740
34	163878
35	25272
36	1344
37	3072
38	87480
39	875592
40	3440052
41	5419992
42	3440052
43	875592

[0, 3, 3, 12, 24, 12, 36, 120, 120, 36, 96, 504, 840, 504, 96, 240, 1944, 5178, 5178, 1944, 240, 576, 7128, 29772, 47640, 29772, 7128, 576, 1344, 25272, 163878, 412740, 412740, 163878, 25272, 1344, 3072, 87480, 875592, 3440052, 5419992, 3440052, 875592]

cp's OEIS Frontend

A268639 T(n,k)=Number of nXk 0..2 arrays with some element plus some horizontally or vertically adjacent neighbor totalling two exactly once.

Table of values

List of values