A169767 - cp's OEIS frontend

A169767 Number of closed knight's tour diagrams of a 3 X n chessboard that have "Eulerian symmetry".

n	a(n)
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	16
15	0
16	0
17	0
18	124
19	0
20	0
21	0
22	1404
23	0
24	0
25	0
26	12824
27	0
28	0
29	0
30	126696
31	0
32	0
33	0
34	1222368
35	0
36	0
37	0
38	11930192
39	0
40	0
41	0
42	115974192
43	0
44	0
45	0
46	1128943296
47	0
48	0
49	0
50	10984783168
51	0
52	0
53	0
54	106897187552
55	0
56	0
57	0
58	1040241749856

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 124, 0, 0, 0, 1404, 0, 0, 0, 12824, 0, 0, 0, 126696, 0, 0, 0, 1222368, 0, 0, 0, 11930192, 0, 0, 0, 115974192, 0, 0, 0, 1128943296, 0, 0, 0, 10984783168, 0, 0, 0, 106897187552, 0, 0, 0, 1040241749856]

cp's OEIS Frontend

A169767 Number of closed knight's tour diagrams of a 3 X n chessboard that have "Eulerian symmetry".

Table of values

List of values