A333513 - cp's OEIS frontend

A333513 Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of self-avoiding closed paths on an n X k grid which pass through four corners ((0,0), (0,k-1), (n-1,k-1), (n-1,0)).

n	a(n)
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	3
10	3
11	1
12	1
13	7
14	11
15	7
16	1
17	1
18	17
19	49
20	49
21	17
22	1
23	1
24	41
25	229
26	373
27	229
28	41
29	1
30	1
31	99
32	1081
33	3105
34	3105
35	1081
36	99
37	1
38	1
39	239
40	5123
41	26515
42	44930
43	26515
44	5123
45	239
46	1
47	1
48	577
49	24323
50	227441
51	674292
52	674292
53	227441
54	24323
55	577
56	1

[1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 7, 11, 7, 1, 1, 17, 49, 49, 17, 1, 1, 41, 229, 373, 229, 41, 1, 1, 99, 1081, 3105, 3105, 1081, 99, 1, 1, 239, 5123, 26515, 44930, 26515, 5123, 239, 1, 1, 577, 24323, 227441, 674292, 674292, 227441, 24323, 577, 1]

cp's OEIS Frontend

A333513 Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of self-avoiding closed paths on an n X k grid which pass through four corners ((0,0), (0,k-1), (n-1,k-1), (n-1,0)).

Table of values

List of values