A027362 - cp's OEIS frontend

A027362 Number of Hamiltonian cycles in the directed graph with 2n nodes {0..2n-1} and edges from each i to 2i (mod 2n) and to 2i+1 (mod 2n).

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	4
7	7
8	16
9	21
10	48
11	93
12	128
13	315
14	448
15	675
16	2048
17	3825
18	5376
19	13797
20	24576
21	27783
22	95232
23	182183
24	262144
25	629145
26	1290240
27	1835001
28	3670016
29	9256395
30	11059200
31	28629151
32	67108864
33	97327197
34	250675200
35	352149525
36	704643072
37	1857283155
38	3616800768

[1, 1, 1, 2, 3, 4, 7, 16, 21, 48, 93, 128, 315, 448, 675, 2048, 3825, 5376, 13797, 24576, 27783, 95232, 182183, 262144, 629145, 1290240, 1835001, 3670016, 9256395, 11059200, 28629151, 67108864, 97327197, 250675200, 352149525, 704643072, 1857283155, 3616800768]

cp's OEIS Frontend

A027362 Number of Hamiltonian cycles in the directed graph with 2n nodes {0..2n-1} and edges from each i to 2i (mod 2n) and to 2i+1 (mod 2n).

Table of values

List of values