A339849 - cp's OEIS frontend

A339849 Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of Hamiltonian circuits within parallelograms of size n X k on the triangular lattice.

n	a(n)
2	1
3	1
4	1
5	1
6	4
7	1
8	1
9	13
10	13
11	1
12	1
13	44
14	80
15	44
16	1
17	1
18	148
19	549
20	549
21	148
22	1
23	1
24	498
25	3851
26	7104
27	3851
28	498
29	1
30	1
31	1676
32	26499
33	104100
34	104100
35	26499
36	1676
37	1
38	1
39	5640
40	183521
41	1475286
42	3292184
43	1475286
44	183521
45	5640
46	1
47	1
48	18980
49	1269684
50	20842802
51	100766213
52	100766213
53	20842802
54	1269684
55	18980
56	1

[1, 1, 1, 1, 4, 1, 1, 13, 13, 1, 1, 44, 80, 44, 1, 1, 148, 549, 549, 148, 1, 1, 498, 3851, 7104, 3851, 498, 1, 1, 1676, 26499, 104100, 104100, 26499, 1676, 1, 1, 5640, 183521, 1475286, 3292184, 1475286, 183521, 5640, 1, 1, 18980, 1269684, 20842802, 100766213, 100766213, 20842802, 1269684, 18980, 1]

cp's OEIS Frontend

A339849 Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of Hamiltonian circuits within parallelograms of size n X k on the triangular lattice.

Table of values

List of values