A348510 - cp's OEIS frontend

A348510 a(n) = A099377(n) - n, where A099377(n) is the numerator of the harmonic mean of the divisors of n.

n	a(n)
1	0
2	2
3	0
4	8
5	0
6	-4
7	0
8	24
9	18
10	10
11	0
12	6
13	0
14	-7
15	-10
16	64
17	0
18	18
19	0
20	0
21	0
22	0
23	0
24	-8
25	50
26	26
27	0
28	-25
29	0
30	-20
31	0
32	32
33	-22
34	34
35	0
36	288
37	0
38	0
39	0
40	-8
41	0
42	-35
43	0
44	-22
45	0
46	-23
47	0
48	72
49	0
50	50
51	-34
52	104
53	0
54	-36
55	0
56	0
57	0
58	58
59	0
60	-30
61	0
62	-31
63	126
64	384
65	0
66	-55
67	0
68	0
69	-46
70	-35
71	0
72	216
73	0
74	74
75	150
76	38
77	0
78	-52
79	0
80	320
81	324
82	82
83	0
84	-75

[0, 2, 0, 8, 0, -4, 0, 24, 18, 10, 0, 6, 0, -7, -10, 64, 0, 18, 0, 0, 0, 0, 0, -8, 50, 26, 0, -25, 0, -20, 0, 32, -22, 34, 0, 288, 0, 0, 0, -8, 0, -35, 0, -22, 0, -23, 0, 72, 0, 50, -34, 104, 0, -36, 0, 0, 0, 58, 0, -30, 0, -31, 126, 384, 0, -55, 0, 0, -46, -35, 0, 216, 0, 74, 150, 38, 0, -52, 0, 320, 324, 82, 0, -75]

cp's OEIS Frontend

A348510 a(n) = A099377(n) - n, where A099377(n) is the numerator of the harmonic mean of the divisors of n.

Table of values

List of values

n	a(n)
1	0
2	2
3	0
4	8
5	0
6	-4
7	0
8	24
9	18
10	10
11	0
12	6
13	0
14	-7
15	-10
16	64
17	0
18	18
19	0
20	0
21	0
22	0
23	0
24	-8
25	50
26	26
27	0
28	-25
29	0
30	-20
31	0
32	32
33	-22
34	34
35	0
36	288
37	0
38	0
39	0
40	-8
41	0
42	-35
43	0
44	-22
45	0
46	-23
47	0
48	72
49	0
50	50
51	-34
52	104
53	0
54	-36
55	0
56	0
57	0
58	58
59	0
60	-30
61	0
62	-31
63	126
64	384
65	0
66	-55
67	0
68	0
69	-46
70	-35
71	0
72	216
73	0
74	74
75	150
76	38
77	0
78	-52
79	0
80	320
81	324
82	82
83	0
84	-75

n	a(n)
1	0
2	2
3	0
4	8
5	0
6	-4
7	0
8	24
9	18
10	10
11	0
12	6
13	0
14	-7
15	-10
16	64
17	0
18	18
19	0
20	0
21	0
22	0
23	0
24	-8
25	50
26	26
27	0
28	-25
29	0
30	-20
31	0
32	32
33	-22
34	34
35	0
36	288
37	0
38	0
39	0
40	-8
41	0
42	-35
43	0
44	-22
45	0
46	-23
47	0
48	72
49	0
50	50
51	-34
52	104
53	0
54	-36
55	0
56	0
57	0
58	58
59	0
60	-30
61	0
62	-31
63	126
64	384
65	0
66	-55
67	0
68	0
69	-46
70	-35
71	0
72	216
73	0
74	74
75	150
76	38
77	0
78	-52
79	0
80	320
81	324
82	82
83	0
84	-75

n	a(n)
1	0
2	2
3	0
4	8
5	0
6	-4
7	0
8	24
9	18
10	10
11	0
12	6
13	0
14	-7
15	-10
16	64
17	0
18	18
19	0
20	0
21	0
22	0
23	0
24	-8
25	50
26	26
27	0
28	-25
29	0
30	-20
31	0
32	32
33	-22
34	34
35	0
36	288
37	0
38	0
39	0
40	-8
41	0
42	-35
43	0
44	-22
45	0
46	-23
47	0
48	72
49	0
50	50
51	-34
52	104
53	0
54	-36
55	0
56	0
57	0
58	58
59	0
60	-30
61	0
62	-31
63	126
64	384
65	0
66	-55
67	0
68	0
69	-46
70	-35
71	0
72	216
73	0
74	74
75	150
76	38
77	0
78	-52
79	0
80	320
81	324
82	82
83	0
84	-75