A375858 - cp's OEIS frontend

A375858 Array T(n,m) read by antidiagonals: In an n X m grid draw straight walls between cells, starting at a border, such that the resulting figure is connected and has only one-cell wide paths; T(n,m) is the number of solutions.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	1
7	1
8	11
9	11
10	1
11	1
12	26
13	56
14	26
15	1
16	1
17	57
18	212
19	212
20	57
21	1
22	1
23	120
24	701
25	1112
26	701
27	120
28	1
29	1
30	247
31	2179
32	4793
33	4793
34	2179
35	247
36	1
37	1
38	502
39	6600
40	19082
41	25000
42	19082
43	6600
44	502
45	1
46	1
47	1013
48	19808
49	74368
50	116852
51	116852
52	74368
53	19808
54	1013
55	1

[1, 1, 1, 1, 4, 1, 1, 11, 11, 1, 1, 26, 56, 26, 1, 1, 57, 212, 212, 57, 1, 1, 120, 701, 1112, 701, 120, 1, 1, 247, 2179, 4793, 4793, 2179, 247, 1, 1, 502, 6600, 19082, 25000, 19082, 6600, 502, 1, 1, 1013, 19808, 74368, 116852, 116852, 74368, 19808, 1013, 1]

cp's OEIS Frontend

A375858 Array T(n,m) read by antidiagonals: In an n X m grid draw straight walls between cells, starting at a border, such that the resulting figure is connected and has only one-cell wide paths; T(n,m) is the number of solutions.

Table of values

List of values