A116723 - cp's OEIS frontend

A116723 We have one bead labeled i for every i=1, 2, ...; a(n) = number of necklaces that can be made using any subset of the first n beads.

n	a(n)
0	1
1	2
2	4
3	8
4	18
5	53
6	219
7	1201
8	8055
9	62860
10	556070
11	5488126
12	59740688
13	710771367
14	9174170117
15	127661752527
16	1904975488573
17	30341995265190
18	513771331467544
19	9215499383109764
20	174548332364311774
21	3481204991988351785
22	72920994844093191807
23	1600596371590399672061

[1, 2, 4, 8, 18, 53, 219, 1201, 8055, 62860, 556070, 5488126, 59740688, 710771367, 9174170117, 127661752527, 1904975488573, 30341995265190, 513771331467544, 9215499383109764, 174548332364311774, 3481204991988351785, 72920994844093191807, 1600596371590399672061]

cp's OEIS Frontend

A116723 We have one bead labeled i for every i=1, 2, ...; a(n) = number of necklaces that can be made using any subset of the first n beads.

Table of values

List of values