A221824 - cp's OEIS frontend

A221824 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.

n	a(n)
1	1
2	3
3	3
4	6
5	31
6	6
7	13
8	252
9	252
10	13
11	28
12	2113
13	6711
14	2113
15	28
16	60
17	17684
18	190756
19	190756
20	17684
21	60
22	129
23	147920
24	5374720
25	18636989
26	5374720
27	147920
28	129
29	277
30	1237439
31	151592441
32	1804472268
33	1804472268
34	151592441
35	1237439
36	277
37	595
38	10351593

[1, 3, 3, 6, 31, 6, 13, 252, 252, 13, 28, 2113, 6711, 2113, 28, 60, 17684, 190756, 190756, 17684, 60, 129, 147920, 5374720, 18636989, 5374720, 147920, 129, 277, 1237439, 151592441, 1804472268, 1804472268, 151592441, 1237439, 277, 595, 10351593]

cp's OEIS Frontend

A221824 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.

Table of values

List of values