A125297 - cp's OEIS frontend

A125297 Number of nonempty subsets S of {1,2,3,...,n} such that each member of S divides the sum of all members of S.

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	9
7	10
8	12
9	15
10	17
11	18
12	24
13	25
14	27
15	31
16	34
17	35
18	42
19	43
20	59
21	62
22	63
23	64
24	82
25	83
26	84
27	88
28	97
29	98
30	146
31	147
32	153
33	156
34	157
35	158
36	185
37	186
38	187
39	189
40	314
41	315
42	337
43	338
44	343
45	430
46	431
47	432
48	491
49	492
50	495
51	497
52	500
53	501

[1, 2, 4, 5, 6, 9, 10, 12, 15, 17, 18, 24, 25, 27, 31, 34, 35, 42, 43, 59, 62, 63, 64, 82, 83, 84, 88, 97, 98, 146, 147, 153, 156, 157, 158, 185, 186, 187, 189, 314, 315, 337, 338, 343, 430, 431, 432, 491, 492, 495, 497, 500, 501]

cp's OEIS Frontend

A125297 Number of nonempty subsets S of {1,2,3,...,n} such that each member of S divides the sum of all members of S.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	9
7	10
8	12
9	15
10	17
11	18
12	24
13	25
14	27
15	31
16	34
17	35
18	42
19	43
20	59
21	62
22	63
23	64
24	82
25	83
26	84
27	88
28	97
29	98
30	146
31	147
32	153
33	156
34	157
35	158
36	185
37	186
38	187
39	189
40	314
41	315
42	337
43	338
44	343
45	430
46	431
47	432
48	491
49	492
50	495
51	497
52	500
53	501

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	9
7	10
8	12
9	15
10	17
11	18
12	24
13	25
14	27
15	31
16	34
17	35
18	42
19	43
20	59
21	62
22	63
23	64
24	82
25	83
26	84
27	88
28	97
29	98
30	146
31	147
32	153
33	156
34	157
35	158
36	185
37	186
38	187
39	189
40	314
41	315
42	337
43	338
44	343
45	430
46	431
47	432
48	491
49	492
50	495
51	497
52	500
53	501

n	a(n)
1	1
2	2
3	4
4	5
5	6
6	9
7	10
8	12
9	15
10	17
11	18
12	24
13	25
14	27
15	31
16	34
17	35
18	42
19	43
20	59
21	62
22	63
23	64
24	82
25	83
26	84
27	88
28	97
29	98
30	146
31	147
32	153
33	156
34	157
35	158
36	185
37	186
38	187
39	189
40	314
41	315
42	337
43	338
44	343
45	430
46	431
47	432
48	491
49	492
50	495
51	497
52	500
53	501