A221139 - cp's OEIS frontend

A221139 T(n,k) = number of n X k arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.

n	a(n)
1	0
2	1
3	1
4	2
5	9
6	2
7	4
8	49
9	49
10	4
11	8
12	289
13	656
14	289
15	8
16	16
17	1681
18	12544
19	12544
20	1681
21	16
22	32
23	9801
24	200072
25	643204
26	200072
27	9801
28	32
29	64
30	57121
31	3485689
32	31203396
33	31203396
34	3485689
35	57121
36	64
37	128
38	332929
39	58132316
40	1539699121
41	4235650596
42	1539699121

[0, 1, 1, 2, 9, 2, 4, 49, 49, 4, 8, 289, 656, 289, 8, 16, 1681, 12544, 12544, 1681, 16, 32, 9801, 200072, 643204, 200072, 9801, 32, 64, 57121, 3485689, 31203396, 31203396, 3485689, 57121, 64, 128, 332929, 58132316, 1539699121, 4235650596, 1539699121]

cp's OEIS Frontend

A221139 T(n,k) = number of n X k arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.

Table of values

List of values