A348219 - cp's OEIS frontend

A348219 a(n) = tau(n) - omega(n) + n * Sum_{p|n, p prime} 1/p.

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	7
7	2
8	7
9	5
10	9
11	2
12	14
13	2
14	11
15	10
16	12
17	2
18	19
19	2
20	18
21	12
22	15
23	2
24	26
25	7
26	17
27	12
28	22
29	2
30	36
31	2
32	21
33	16
34	21
35	14
36	37
37	2
38	23
39	18
40	34
41	2
42	46
43	2
44	30
45	28
46	27
47	2
48	48
49	9
50	39
51	22
52	34
53	2
54	51
55	18
56	42
57	24
58	33
59	2
60	71
61	2
62	35
63	34
64	38
65	20
66	66
67	2
68	42
69	28
70	64
71	2
72	70
73	2
74	41
75	44
76	46

[1, 2, 2, 4, 2, 7, 2, 7, 5, 9, 2, 14, 2, 11, 10, 12, 2, 19, 2, 18, 12, 15, 2, 26, 7, 17, 12, 22, 2, 36, 2, 21, 16, 21, 14, 37, 2, 23, 18, 34, 2, 46, 2, 30, 28, 27, 2, 48, 9, 39, 22, 34, 2, 51, 18, 42, 24, 33, 2, 71, 2, 35, 34, 38, 20, 66, 2, 42, 28, 64, 2, 70, 2, 41, 44, 46]

cp's OEIS Frontend

A348219 a(n) = tau(n) - omega(n) + n * Sum_{p|n, p prime} 1/p.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	7
7	2
8	7
9	5
10	9
11	2
12	14
13	2
14	11
15	10
16	12
17	2
18	19
19	2
20	18
21	12
22	15
23	2
24	26
25	7
26	17
27	12
28	22
29	2
30	36
31	2
32	21
33	16
34	21
35	14
36	37
37	2
38	23
39	18
40	34
41	2
42	46
43	2
44	30
45	28
46	27
47	2
48	48
49	9
50	39
51	22
52	34
53	2
54	51
55	18
56	42
57	24
58	33
59	2
60	71
61	2
62	35
63	34
64	38
65	20
66	66
67	2
68	42
69	28
70	64
71	2
72	70
73	2
74	41
75	44
76	46

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	7
7	2
8	7
9	5
10	9
11	2
12	14
13	2
14	11
15	10
16	12
17	2
18	19
19	2
20	18
21	12
22	15
23	2
24	26
25	7
26	17
27	12
28	22
29	2
30	36
31	2
32	21
33	16
34	21
35	14
36	37
37	2
38	23
39	18
40	34
41	2
42	46
43	2
44	30
45	28
46	27
47	2
48	48
49	9
50	39
51	22
52	34
53	2
54	51
55	18
56	42
57	24
58	33
59	2
60	71
61	2
62	35
63	34
64	38
65	20
66	66
67	2
68	42
69	28
70	64
71	2
72	70
73	2
74	41
75	44
76	46

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	7
7	2
8	7
9	5
10	9
11	2
12	14
13	2
14	11
15	10
16	12
17	2
18	19
19	2
20	18
21	12
22	15
23	2
24	26
25	7
26	17
27	12
28	22
29	2
30	36
31	2
32	21
33	16
34	21
35	14
36	37
37	2
38	23
39	18
40	34
41	2
42	46
43	2
44	30
45	28
46	27
47	2
48	48
49	9
50	39
51	22
52	34
53	2
54	51
55	18
56	42
57	24
58	33
59	2
60	71
61	2
62	35
63	34
64	38
65	20
66	66
67	2
68	42
69	28
70	64
71	2
72	70
73	2
74	41
75	44
76	46