A230593 - cp's OEIS frontend

A230593 a(n) = n * Sum_{q|n} 1 / q, where q are noncomposite numbers (A008578) dividing n.

n	a(n)
1	1
2	3
3	4
4	6
5	6
6	11
7	8
8	12
9	12
10	17
11	12
12	22
13	14
14	23
15	23
16	24
17	18
18	33
19	20
20	34
21	31
22	35
23	24
24	44
25	30
26	41
27	36
28	46
29	30
30	61
31	32
32	48
33	47
34	53
35	47
36	66
37	38
38	59
39	55
40	68
41	42
42	83
43	44
44	70
45	69
46	71
47	48
48	88
49	56
50	85
51	71
52	82
53	54
54	99
55	71
56	92
57	79
58	89
59	60
60	122
61	62
62	95
63	93
64	96
65	83
66	127

[1, 3, 4, 6, 6, 11, 8, 12, 12, 17, 12, 22, 14, 23, 23, 24, 18, 33, 20, 34, 31, 35, 24, 44, 30, 41, 36, 46, 30, 61, 32, 48, 47, 53, 47, 66, 38, 59, 55, 68, 42, 83, 44, 70, 69, 71, 48, 88, 56, 85, 71, 82, 54, 99, 71, 92, 79, 89, 60, 122, 62, 95, 93, 96, 83, 127]

cp's OEIS Frontend

A230593 a(n) = n * Sum_{q|n} 1 / q, where q are noncomposite numbers (A008578) dividing n.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	6
5	6
6	11
7	8
8	12
9	12
10	17
11	12
12	22
13	14
14	23
15	23
16	24
17	18
18	33
19	20
20	34
21	31
22	35
23	24
24	44
25	30
26	41
27	36
28	46
29	30
30	61
31	32
32	48
33	47
34	53
35	47
36	66
37	38
38	59
39	55
40	68
41	42
42	83
43	44
44	70
45	69
46	71
47	48
48	88
49	56
50	85
51	71
52	82
53	54
54	99
55	71
56	92
57	79
58	89
59	60
60	122
61	62
62	95
63	93
64	96
65	83
66	127

n	a(n)
1	1
2	3
3	4
4	6
5	6
6	11
7	8
8	12
9	12
10	17
11	12
12	22
13	14
14	23
15	23
16	24
17	18
18	33
19	20
20	34
21	31
22	35
23	24
24	44
25	30
26	41
27	36
28	46
29	30
30	61
31	32
32	48
33	47
34	53
35	47
36	66
37	38
38	59
39	55
40	68
41	42
42	83
43	44
44	70
45	69
46	71
47	48
48	88
49	56
50	85
51	71
52	82
53	54
54	99
55	71
56	92
57	79
58	89
59	60
60	122
61	62
62	95
63	93
64	96
65	83
66	127

n	a(n)
1	1
2	3
3	4
4	6
5	6
6	11
7	8
8	12
9	12
10	17
11	12
12	22
13	14
14	23
15	23
16	24
17	18
18	33
19	20
20	34
21	31
22	35
23	24
24	44
25	30
26	41
27	36
28	46
29	30
30	61
31	32
32	48
33	47
34	53
35	47
36	66
37	38
38	59
39	55
40	68
41	42
42	83
43	44
44	70
45	69
46	71
47	48
48	88
49	56
50	85
51	71
52	82
53	54
54	99
55	71
56	92
57	79
58	89
59	60
60	122
61	62
62	95
63	93
64	96
65	83
66	127