A055081 - cp's OEIS frontend

A055081 Number of positive integers whose harmonic mean with n is a positive integer.

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	7
7	3
8	4
9	5
10	6
11	3
12	10
13	3
14	6
15	10
16	5
17	3
18	11
19	3
20	10
21	9
22	6
23	3
24	13
25	5
26	6
27	7
28	10
29	3
30	20
31	3
32	6
33	9
34	6
35	10
36	16
37	3
38	6
39	9
40	13
41	3
42	20
43	3
44	9
45	17
46	6
47	3
48	16
49	5
50	10
51	9
52	9
53	3
54	15
55	9
56	13
57	9
58	6
59	3
60	30
61	3
62	6
63	16
64	7
65	9
66	20
67	3
68	9
69	9
70	19
71	3
72	22
73	3
74	6
75	16
76	9
77	10
78	19
79	3
80	16
81	9
82	6
83	3
84	30
85	9
86	6
87	9
88	13
89	3
90	33

[1, 2, 3, 3, 3, 7, 3, 4, 5, 6, 3, 10, 3, 6, 10, 5, 3, 11, 3, 10, 9, 6, 3, 13, 5, 6, 7, 10, 3, 20, 3, 6, 9, 6, 10, 16, 3, 6, 9, 13, 3, 20, 3, 9, 17, 6, 3, 16, 5, 10, 9, 9, 3, 15, 9, 13, 9, 6, 3, 30, 3, 6, 16, 7, 9, 20, 3, 9, 9, 19, 3, 22, 3, 6, 16, 9, 10, 19, 3, 16, 9, 6, 3, 30, 9, 6, 9, 13, 3, 33]

cp's OEIS Frontend

A055081 Number of positive integers whose harmonic mean with n is a positive integer.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	7
7	3
8	4
9	5
10	6
11	3
12	10
13	3
14	6
15	10
16	5
17	3
18	11
19	3
20	10
21	9
22	6
23	3
24	13
25	5
26	6
27	7
28	10
29	3
30	20
31	3
32	6
33	9
34	6
35	10
36	16
37	3
38	6
39	9
40	13
41	3
42	20
43	3
44	9
45	17
46	6
47	3
48	16
49	5
50	10
51	9
52	9
53	3
54	15
55	9
56	13
57	9
58	6
59	3
60	30
61	3
62	6
63	16
64	7
65	9
66	20
67	3
68	9
69	9
70	19
71	3
72	22
73	3
74	6
75	16
76	9
77	10
78	19
79	3
80	16
81	9
82	6
83	3
84	30
85	9
86	6
87	9
88	13
89	3
90	33

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	7
7	3
8	4
9	5
10	6
11	3
12	10
13	3
14	6
15	10
16	5
17	3
18	11
19	3
20	10
21	9
22	6
23	3
24	13
25	5
26	6
27	7
28	10
29	3
30	20
31	3
32	6
33	9
34	6
35	10
36	16
37	3
38	6
39	9
40	13
41	3
42	20
43	3
44	9
45	17
46	6
47	3
48	16
49	5
50	10
51	9
52	9
53	3
54	15
55	9
56	13
57	9
58	6
59	3
60	30
61	3
62	6
63	16
64	7
65	9
66	20
67	3
68	9
69	9
70	19
71	3
72	22
73	3
74	6
75	16
76	9
77	10
78	19
79	3
80	16
81	9
82	6
83	3
84	30
85	9
86	6
87	9
88	13
89	3
90	33

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	7
7	3
8	4
9	5
10	6
11	3
12	10
13	3
14	6
15	10
16	5
17	3
18	11
19	3
20	10
21	9
22	6
23	3
24	13
25	5
26	6
27	7
28	10
29	3
30	20
31	3
32	6
33	9
34	6
35	10
36	16
37	3
38	6
39	9
40	13
41	3
42	20
43	3
44	9
45	17
46	6
47	3
48	16
49	5
50	10
51	9
52	9
53	3
54	15
55	9
56	13
57	9
58	6
59	3
60	30
61	3
62	6
63	16
64	7
65	9
66	20
67	3
68	9
69	9
70	19
71	3
72	22
73	3
74	6
75	16
76	9
77	10
78	19
79	3
80	16
81	9
82	6
83	3
84	30
85	9
86	6
87	9
88	13
89	3
90	33