A063776 - cp's OEIS frontend

A063776 Number of subsets of {1,2,...,n} which sum to 0 modulo n.

n	a(n)
1	2
2	2
3	4
4	4
5	8
6	12
7	20
8	32
9	60
10	104
11	188
12	344
13	632
14	1172
15	2192
16	4096
17	7712
18	14572
19	27596
20	52432
21	99880
22	190652
23	364724
24	699072
25	1342184
26	2581112
27	4971068
28	9586984
29	18512792
30	35791472
31	69273668
32	134217728
33	260301176
34	505290272
35	981706832

[2, 2, 4, 4, 8, 12, 20, 32, 60, 104, 188, 344, 632, 1172, 2192, 4096, 7712, 14572, 27596, 52432, 99880, 190652, 364724, 699072, 1342184, 2581112, 4971068, 9586984, 18512792, 35791472, 69273668, 134217728, 260301176, 505290272, 981706832]

cp's OEIS Frontend

A063776 Number of subsets of {1,2,...,n} which sum to 0 modulo n.

Table of values

List of values