A053629 - cp's OEIS frontend

A053629 Smallest integer where the harmonic mean of a(n) and A005279(n) is an integer.

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

[2, 4, 3, 6, 5, 8, 4, 6, 14, 12, 10, 7, 5, 16, 18, 8, 12, 18, 6, 28, 9, 15, 21, 26, 20, 12, 33, 10, 7, 32, 22, 25, 34, 24, 21, 36, 11, 16, 38, 45, 8, 21, 39, 12, 15, 46, 20, 26, 18, 30, 9, 42, 13, 40, 54, 33, 24, 30, 58, 70, 66, 20, 14, 62, 55, 54, 10, 64, 30, 28, 18, 50, 68, 48]

cp's OEIS Frontend

A053629 Smallest integer where the harmonic mean of a(n) and A005279(n) is an integer.

Table of values

List of values

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

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

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