A051293 - cp's OEIS frontend

A051293 Number of nonempty subsets of {1,2,3,...,n} whose elements have an integer average.

n	a(n)
1	1
2	2
3	5
4	8
5	15
6	26
7	45
8	76
9	135
10	238
11	425
12	768
13	1399
14	2570
15	4761
16	8856
17	16567
18	31138
19	58733
20	111164
21	211043
22	401694
23	766417
24	1465488
25	2807671
26	5388782
27	10359849
28	19946832
29	38459623
30	74251094
31	143524761
32	277742488
33	538043663
34	1043333934
35	2025040765
36	3933915348

[1, 2, 5, 8, 15, 26, 45, 76, 135, 238, 425, 768, 1399, 2570, 4761, 8856, 16567, 31138, 58733, 111164, 211043, 401694, 766417, 1465488, 2807671, 5388782, 10359849, 19946832, 38459623, 74251094, 143524761, 277742488, 538043663, 1043333934, 2025040765, 3933915348]

cp's OEIS Frontend

A051293 Number of nonempty subsets of {1,2,3,...,n} whose elements have an integer average.

Table of values

List of values