A199572 - cp's OEIS frontend

A199572 Number of round trips of length n on the cycle graph C_2 from any of the two vertices.

n	a(n)
0	1
1	0
2	4
3	0
4	16
5	0
6	64
7	0
8	256
9	0
10	1024
11	0
12	4096
13	0
14	16384
15	0
16	65536
17	0
18	262144
19	0
20	1048576
21	0
22	4194304
23	0
24	16777216
25	0
26	67108864
27	0
28	268435456
29	0
30	1073741824
31	0
32	4294967296
33	0
34	17179869184
35	0
36	68719476736
37	0
38	274877906944
39	0

[1, 0, 4, 0, 16, 0, 64, 0, 256, 0, 1024, 0, 4096, 0, 16384, 0, 65536, 0, 262144, 0, 1048576, 0, 4194304, 0, 16777216, 0, 67108864, 0, 268435456, 0, 1073741824, 0, 4294967296, 0, 17179869184, 0, 68719476736, 0, 274877906944, 0]

cp's OEIS Frontend

A199572 Number of round trips of length n on the cycle graph C_2 from any of the two vertices.

Table of values

List of values