A220621 - cp's OEIS frontend

A220621 T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.

n	a(n)
1	1
2	2
3	1
4	3
5	7
6	1
7	5
8	21
9	22
10	1
11	8
12	87
13	125
14	71
15	1
16	13
17	317
18	1189
19	765
20	228
21	1
22	21
23	1215
24	9176
25	17084
26	4657
27	733
28	1
29	34
30	4565
31	76955
32	282777
33	243119
34	28373
35	2356
36	1
37	55
38	17287
39	624227
40	5280827
41	8608738
42	3466455
43	172833
44	7573
45	1
46	89
47	65261
48	5131406
49	93905509

[1, 2, 1, 3, 7, 1, 5, 21, 22, 1, 8, 87, 125, 71, 1, 13, 317, 1189, 765, 228, 1, 21, 1215, 9176, 17084, 4657, 733, 1, 34, 4565, 76955, 282777, 243119, 28373, 2356, 1, 55, 17287, 624227, 5280827, 8608738, 3466455, 172833, 7573, 1, 89, 65261, 5131406, 93905509]

cp's OEIS Frontend

A220621 T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.

Table of values

List of values