A369911 - cp's OEIS frontend

A369911 a(n) = Sum_{p|n, p prime} p * sopf(n/p).

n	a(n)
1	0
2	0
3	0
4	4
5	0
6	12
7	0
8	4
9	9
10	20
11	0
12	16
13	0
14	28
15	30
16	4
17	0
18	21
19	0
20	24
21	42
22	44
23	0
24	16
25	25
26	52
27	9
28	32
29	0
30	62
31	0
32	4
33	66
34	68
35	70
36	25
37	0
38	76
39	78
40	24
41	0
42	82
43	0
44	48
45	39
46	92
47	0
48	16
49	49
50	45
51	102
52	56
53	0
54	21
55	110
56	32
57	114
58	116
59	0
60	66
61	0
62	124
63	51
64	4
65	130
66	122
67	0
68	72
69	138
70	118
71	0
72	25

[0, 0, 0, 4, 0, 12, 0, 4, 9, 20, 0, 16, 0, 28, 30, 4, 0, 21, 0, 24, 42, 44, 0, 16, 25, 52, 9, 32, 0, 62, 0, 4, 66, 68, 70, 25, 0, 76, 78, 24, 0, 82, 0, 48, 39, 92, 0, 16, 49, 45, 102, 56, 0, 21, 110, 32, 114, 116, 0, 66, 0, 124, 51, 4, 130, 122, 0, 72, 138, 118, 0, 25]

cp's OEIS Frontend

A369911 a(n) = Sum_{p|n, p prime} p * sopf(n/p).

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	4
5	0
6	12
7	0
8	4
9	9
10	20
11	0
12	16
13	0
14	28
15	30
16	4
17	0
18	21
19	0
20	24
21	42
22	44
23	0
24	16
25	25
26	52
27	9
28	32
29	0
30	62
31	0
32	4
33	66
34	68
35	70
36	25
37	0
38	76
39	78
40	24
41	0
42	82
43	0
44	48
45	39
46	92
47	0
48	16
49	49
50	45
51	102
52	56
53	0
54	21
55	110
56	32
57	114
58	116
59	0
60	66
61	0
62	124
63	51
64	4
65	130
66	122
67	0
68	72
69	138
70	118
71	0
72	25

n	a(n)
1	0
2	0
3	0
4	4
5	0
6	12
7	0
8	4
9	9
10	20
11	0
12	16
13	0
14	28
15	30
16	4
17	0
18	21
19	0
20	24
21	42
22	44
23	0
24	16
25	25
26	52
27	9
28	32
29	0
30	62
31	0
32	4
33	66
34	68
35	70
36	25
37	0
38	76
39	78
40	24
41	0
42	82
43	0
44	48
45	39
46	92
47	0
48	16
49	49
50	45
51	102
52	56
53	0
54	21
55	110
56	32
57	114
58	116
59	0
60	66
61	0
62	124
63	51
64	4
65	130
66	122
67	0
68	72
69	138
70	118
71	0
72	25

n	a(n)
1	0
2	0
3	0
4	4
5	0
6	12
7	0
8	4
9	9
10	20
11	0
12	16
13	0
14	28
15	30
16	4
17	0
18	21
19	0
20	24
21	42
22	44
23	0
24	16
25	25
26	52
27	9
28	32
29	0
30	62
31	0
32	4
33	66
34	68
35	70
36	25
37	0
38	76
39	78
40	24
41	0
42	82
43	0
44	48
45	39
46	92
47	0
48	16
49	49
50	45
51	102
52	56
53	0
54	21
55	110
56	32
57	114
58	116
59	0
60	66
61	0
62	124
63	51
64	4
65	130
66	122
67	0
68	72
69	138
70	118
71	0
72	25