A369907 - cp's OEIS frontend

A369907 a(n) = n * Sum_{p|n, p prime} omega(n/p) / p.

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	4
9	3
10	7
11	0
12	16
13	0
14	9
15	8
16	8
17	0
18	21
19	0
20	24
21	10
22	13
23	0
24	32
25	5
26	15
27	9
28	32
29	0
30	62
31	0
32	16
33	14
34	19
35	12
36	60
37	0
38	21
39	16
40	48
41	0
42	82
43	0
44	48
45	39
46	25
47	0
48	64
49	7
50	45
51	20
52	56
53	0
54	63
55	16
56	64
57	22
58	31
59	0
60	154
61	0
62	33
63	51
64	32
65	18
66	122
67	0
68	72
69	26
70	118
71	0
72	120
73	0
74	39

[0, 0, 0, 2, 0, 5, 0, 4, 3, 7, 0, 16, 0, 9, 8, 8, 0, 21, 0, 24, 10, 13, 0, 32, 5, 15, 9, 32, 0, 62, 0, 16, 14, 19, 12, 60, 0, 21, 16, 48, 0, 82, 0, 48, 39, 25, 0, 64, 7, 45, 20, 56, 0, 63, 16, 64, 22, 31, 0, 154, 0, 33, 51, 32, 18, 122, 0, 72, 26, 118, 0, 120, 0, 39]

cp's OEIS Frontend

A369907 a(n) = n * Sum_{p|n, p prime} omega(n/p) / p.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	4
9	3
10	7
11	0
12	16
13	0
14	9
15	8
16	8
17	0
18	21
19	0
20	24
21	10
22	13
23	0
24	32
25	5
26	15
27	9
28	32
29	0
30	62
31	0
32	16
33	14
34	19
35	12
36	60
37	0
38	21
39	16
40	48
41	0
42	82
43	0
44	48
45	39
46	25
47	0
48	64
49	7
50	45
51	20
52	56
53	0
54	63
55	16
56	64
57	22
58	31
59	0
60	154
61	0
62	33
63	51
64	32
65	18
66	122
67	0
68	72
69	26
70	118
71	0
72	120
73	0
74	39

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	4
9	3
10	7
11	0
12	16
13	0
14	9
15	8
16	8
17	0
18	21
19	0
20	24
21	10
22	13
23	0
24	32
25	5
26	15
27	9
28	32
29	0
30	62
31	0
32	16
33	14
34	19
35	12
36	60
37	0
38	21
39	16
40	48
41	0
42	82
43	0
44	48
45	39
46	25
47	0
48	64
49	7
50	45
51	20
52	56
53	0
54	63
55	16
56	64
57	22
58	31
59	0
60	154
61	0
62	33
63	51
64	32
65	18
66	122
67	0
68	72
69	26
70	118
71	0
72	120
73	0
74	39

n	a(n)
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	4
9	3
10	7
11	0
12	16
13	0
14	9
15	8
16	8
17	0
18	21
19	0
20	24
21	10
22	13
23	0
24	32
25	5
26	15
27	9
28	32
29	0
30	62
31	0
32	16
33	14
34	19
35	12
36	60
37	0
38	21
39	16
40	48
41	0
42	82
43	0
44	48
45	39
46	25
47	0
48	64
49	7
50	45
51	20
52	56
53	0
54	63
55	16
56	64
57	22
58	31
59	0
60	154
61	0
62	33
63	51
64	32
65	18
66	122
67	0
68	72
69	26
70	118
71	0
72	120
73	0
74	39