A110981 - cp's OEIS frontend

A110981 a(n) = the number of aperiodic subsets S of the n-th roots of 1 with zero sum (i.e., there is no r different from 1 such that r*S=S).

n	a(n)
1	1
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	2
13	0
14	0
15	0
16	0
17	0
18	24
19	0
20	6
21	0
22	0
23	0
24	236
25	0
26	0
27	0
28	18
29	0
30	3768
31	0
32	0
33	0
34	0
35	0
36	20384
37	0
38	0
39	0
40	7188
41	0
42	227784
43	0
44	186
45	480
46	0
47	0
48	1732448
49	0
50	237600
51	0
52	630
53	0
54	16028160
55	0
56	306684
57	0
58	0
59	0
60	341521732
61	0
62	0
63	4896
64	0
65	0
66	1417919208

[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 24, 0, 6, 0, 0, 0, 236, 0, 0, 0, 18, 0, 3768, 0, 0, 0, 0, 0, 20384, 0, 0, 0, 7188, 0, 227784, 0, 186, 480, 0, 0, 1732448, 0, 237600, 0, 630, 0, 16028160, 0, 306684, 0, 0, 0, 341521732, 0, 0, 4896, 0, 0, 1417919208]

cp's OEIS Frontend

A110981 a(n) = the number of aperiodic subsets S of the n-th roots of 1 with zero sum (i.e., there is no r different from 1 such that r*S=S).

Table of values

List of values