A222020 - cp's OEIS frontend

A222020 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.

n	a(n)
1	1
2	3
3	3
4	6
5	27
6	6
7	13
8	188
9	188
10	13
11	28
12	1363
13	3875
14	1363
15	28
16	60
17	9838
18	86088
19	86088
20	9838
21	60
22	129
23	70994
24	1892859
25	5925053
26	1892859
27	70994
28	129
29	277
30	512456
31	41636522
32	403317044
33	403317044
34	41636522
35	512456
36	277
37	595
38	3698699
39	916164266

[1, 3, 3, 6, 27, 6, 13, 188, 188, 13, 28, 1363, 3875, 1363, 28, 60, 9838, 86088, 86088, 9838, 60, 129, 70994, 1892859, 5925053, 1892859, 70994, 129, 277, 512456, 41636522, 403317044, 403317044, 41636522, 512456, 277, 595, 3698699, 916164266]

cp's OEIS Frontend

A222020 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.

Table of values

List of values