A221937 - cp's OEIS frontend

A221937 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.

n	a(n)
1	1
2	3
3	1
4	6
5	17
6	1
7	13
8	105
9	91
10	1
11	28
12	783
13	1599
14	489
15	1
16	60
17	5622
18	36467
19	24535
20	2627
21	1
22	129
23	40608
24	799632
25	1759041
26	376389
27	14113
28	1
29	277
30	293084
31	17595404
32	119035112
33	84547866
34	5773962
35	75819
36	1
37	595
38	2115379
39	387146025
40	8118923949
41	17626884659

[1, 3, 1, 6, 17, 1, 13, 105, 91, 1, 28, 783, 1599, 489, 1, 60, 5622, 36467, 24535, 2627, 1, 129, 40608, 799632, 1759041, 376389, 14113, 1, 277, 293084, 17595404, 119035112, 84547866, 5773962, 75819, 1, 595, 2115379, 387146025, 8118923949, 17626884659]

cp's OEIS Frontend

A221937 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.

Table of values

List of values