A333575 - cp's OEIS frontend

A333575 Number of Hamiltonian paths in the n X 3 grid graph which start at any of the n vertices on left side of the graph and terminate at any of the n vertices on the right side.

n	a(n)
1	1
2	2
3	8
4	14
5	38
6	74
7	170
8	338
9	724
10	1448
11	3000
12	6008
13	12240
14	24512
15	49504
16	99104
17	199232
18	398720
19	799616
20	1599872
21	3204352
22	6410240
23	12830208
24	25664000
25	51348480
26	102705152
27	205453312
28	410925056
29	821940224
30	1643921408
31	3288031232
32	6576152576
33	13152698368
34	26305593344

[1, 2, 8, 14, 38, 74, 170, 338, 724, 1448, 3000, 6008, 12240, 24512, 49504, 99104, 199232, 398720, 799616, 1599872, 3204352, 6410240, 12830208, 25664000, 51348480, 102705152, 205453312, 410925056, 821940224, 1643921408, 3288031232, 6576152576, 13152698368, 26305593344]

cp's OEIS Frontend

A333575 Number of Hamiltonian paths in the n X 3 grid graph which start at any of the n vertices on left side of the graph and terminate at any of the n vertices on the right side.

Table of values

List of values