A005418 - cp's OEIS frontend

A005418 Number of (n-1)-bead black-white reversible strings; also binary grids; also row sums of Losanitsch's triangle A034851; also number of caterpillar graphs on n+2 vertices.

n	a(n)
1	1
2	2
3	3
4	6
5	10
6	20
7	36
8	72
9	136
10	272
11	528
12	1056
13	2080
14	4160
15	8256
16	16512
17	32896
18	65792
19	131328
20	262656
21	524800
22	1049600
23	2098176
24	4196352
25	8390656
26	16781312
27	33558528
28	67117056
29	134225920
30	268451840
31	536887296
32	1073774592
33	2147516416
34	4295032832

[1, 2, 3, 6, 10, 20, 36, 72, 136, 272, 528, 1056, 2080, 4160, 8256, 16512, 32896, 65792, 131328, 262656, 524800, 1049600, 2098176, 4196352, 8390656, 16781312, 33558528, 67117056, 134225920, 268451840, 536887296, 1073774592, 2147516416, 4295032832]

cp's OEIS Frontend

A005418 Number of (n-1)-bead black-white reversible strings; also binary grids; also row sums of Losanitsch's triangle A034851; also number of caterpillar graphs on n+2 vertices.

Table of values

List of values