A095113 - cp's OEIS frontend

A095113 a(1)=1. a(n) is the sum of n/d over all divisors d of n which are among a(1), ..., a(n-1).

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	12
7	7
8	12
9	12
10	17
11	11
12	25
13	13
14	23
15	23
16	24
17	18
18	37
19	19
20	34
21	31
22	35
23	24
24	51
25	31
26	41
27	36
28	46
29	29
30	66
31	32
32	49
33	47
34	54
35	48
36	78
37	38
38	60
39	55
40	68
41	42
42	91
43	43
44	70
45	69
46	72
47	48
48	103
49	57
50	87
51	72
52	82
53	53
54	112
55	72
56	92
57	80
58	89
59	59
60	138
61	61
62	95
63	93
64	98
65	83
66	139
67	67
68	109
69	96
70	132

[1, 2, 3, 6, 5, 12, 7, 12, 12, 17, 11, 25, 13, 23, 23, 24, 18, 37, 19, 34, 31, 35, 24, 51, 31, 41, 36, 46, 29, 66, 32, 49, 47, 54, 48, 78, 38, 60, 55, 68, 42, 91, 43, 70, 69, 72, 48, 103, 57, 87, 72, 82, 53, 112, 72, 92, 80, 89, 59, 138, 61, 95, 93, 98, 83, 139, 67, 109, 96, 132]

cp's OEIS Frontend

A095113 a(1)=1. a(n) is the sum of n/d over all divisors d of n which are among a(1), ..., a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	12
7	7
8	12
9	12
10	17
11	11
12	25
13	13
14	23
15	23
16	24
17	18
18	37
19	19
20	34
21	31
22	35
23	24
24	51
25	31
26	41
27	36
28	46
29	29
30	66
31	32
32	49
33	47
34	54
35	48
36	78
37	38
38	60
39	55
40	68
41	42
42	91
43	43
44	70
45	69
46	72
47	48
48	103
49	57
50	87
51	72
52	82
53	53
54	112
55	72
56	92
57	80
58	89
59	59
60	138
61	61
62	95
63	93
64	98
65	83
66	139
67	67
68	109
69	96
70	132

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	12
7	7
8	12
9	12
10	17
11	11
12	25
13	13
14	23
15	23
16	24
17	18
18	37
19	19
20	34
21	31
22	35
23	24
24	51
25	31
26	41
27	36
28	46
29	29
30	66
31	32
32	49
33	47
34	54
35	48
36	78
37	38
38	60
39	55
40	68
41	42
42	91
43	43
44	70
45	69
46	72
47	48
48	103
49	57
50	87
51	72
52	82
53	53
54	112
55	72
56	92
57	80
58	89
59	59
60	138
61	61
62	95
63	93
64	98
65	83
66	139
67	67
68	109
69	96
70	132

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	12
7	7
8	12
9	12
10	17
11	11
12	25
13	13
14	23
15	23
16	24
17	18
18	37
19	19
20	34
21	31
22	35
23	24
24	51
25	31
26	41
27	36
28	46
29	29
30	66
31	32
32	49
33	47
34	54
35	48
36	78
37	38
38	60
39	55
40	68
41	42
42	91
43	43
44	70
45	69
46	72
47	48
48	103
49	57
50	87
51	72
52	82
53	53
54	112
55	72
56	92
57	80
58	89
59	59
60	138
61	61
62	95
63	93
64	98
65	83
66	139
67	67
68	109
69	96
70	132