A053626 - cp's OEIS frontend

A053626 a(n) is the smallest positive integer k such that harmonic mean of n and k is an integer.

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

[1, 2, 3, 4, 5, 2, 7, 8, 9, 10, 11, 4, 13, 14, 3, 16, 17, 6, 19, 5, 21, 22, 23, 8, 25, 26, 27, 4, 29, 6, 31, 32, 33, 34, 14, 12, 37, 38, 39, 10, 41, 7, 43, 44, 5, 46, 47, 16, 49, 50, 51, 52, 53, 18, 55, 8, 57, 58, 59, 12, 61, 62, 18, 64, 65, 6, 67, 68, 69, 28, 71, 9, 73, 74, 15, 76]

cp's OEIS Frontend

A053626 a(n) is the smallest positive integer k such that harmonic mean of n and k is an integer.

Table of values

List of values

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

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

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