A090240 - cp's OEIS frontend

A090240 Numbers which occur as the harmonic mean of the divisors of m for some m.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	17
15	19
16	21
17	24
18	25
19	26
20	27
21	29
22	31
23	35
24	37
25	39
26	41
27	42
28	44
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	53
37	54
38	60
39	61
40	70
41	73
42	75
43	77
44	78
45	80
46	81
47	82
48	83
49	84
50	85
51	86
52	87
53	88
54	89
55	91
56	92
57	94
58	96
59	97
60	99
61	101
62	102
63	105
64	106
65	107
66	108
67	110
68	114
69	115

[1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 17, 19, 21, 24, 25, 26, 27, 29, 31, 35, 37, 39, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 60, 61, 70, 73, 75, 77, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 94, 96, 97, 99, 101, 102, 105, 106, 107, 108, 110, 114, 115]

cp's OEIS Frontend

A090240 Numbers which occur as the harmonic mean of the divisors of m for some m.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	17
15	19
16	21
17	24
18	25
19	26
20	27
21	29
22	31
23	35
24	37
25	39
26	41
27	42
28	44
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	53
37	54
38	60
39	61
40	70
41	73
42	75
43	77
44	78
45	80
46	81
47	82
48	83
49	84
50	85
51	86
52	87
53	88
54	89
55	91
56	92
57	94
58	96
59	97
60	99
61	101
62	102
63	105
64	106
65	107
66	108
67	110
68	114
69	115

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	17
15	19
16	21
17	24
18	25
19	26
20	27
21	29
22	31
23	35
24	37
25	39
26	41
27	42
28	44
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	53
37	54
38	60
39	61
40	70
41	73
42	75
43	77
44	78
45	80
46	81
47	82
48	83
49	84
50	85
51	86
52	87
53	88
54	89
55	91
56	92
57	94
58	96
59	97
60	99
61	101
62	102
63	105
64	106
65	107
66	108
67	110
68	114
69	115

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	15
14	17
15	19
16	21
17	24
18	25
19	26
20	27
21	29
22	31
23	35
24	37
25	39
26	41
27	42
28	44
29	45
30	46
31	47
32	48
33	49
34	50
35	51
36	53
37	54
38	60
39	61
40	70
41	73
42	75
43	77
44	78
45	80
46	81
47	82
48	83
49	84
50	85
51	86
52	87
53	88
54	89
55	91
56	92
57	94
58	96
59	97
60	99
61	101
62	102
63	105
64	106
65	107
66	108
67	110
68	114
69	115