A065454 - cp's OEIS frontend

A065454 Let the k-th harmonic number be H(k) = Sum_{i=1..k} 1/i = P(k)/Q(k) = A001008(k)/A002805(k); sequence gives values of k such that Q(k) = Q(k+1).

n	a(n)
1	9
2	11
3	13
4	14
5	21
6	25
7	27
8	29
9	33
10	34
11	35
12	37
13	38
14	39
15	44
16	45
17	47
18	49
19	50
20	51
21	54
22	55
23	56
24	57
25	59
26	61
27	64
28	67
29	69
30	73
31	74
32	75
33	77
34	79
35	81
36	83
37	84
38	85
39	86
40	89
41	90
42	91
43	92
44	93
45	94
46	95
47	97
48	98
49	101
50	103
51	105
52	107
53	110
54	111
55	113
56	114
57	115
58	116
59	117
60	118
61	121
62	122
63	123
64	125

[9, 11, 13, 14, 21, 25, 27, 29, 33, 34, 35, 37, 38, 39, 44, 45, 47, 49, 50, 51, 54, 55, 56, 57, 59, 61, 64, 67, 69, 73, 74, 75, 77, 79, 81, 83, 84, 85, 86, 89, 90, 91, 92, 93, 94, 95, 97, 98, 101, 103, 105, 107, 110, 111, 113, 114, 115, 116, 117, 118, 121, 122, 123, 125]

cp's OEIS Frontend

A065454 Let the k-th harmonic number be H(k) = Sum_{i=1..k} 1/i = P(k)/Q(k) = A001008(k)/A002805(k); sequence gives values of k such that Q(k) = Q(k+1).

Table of values

List of values

n	a(n)
1	9
2	11
3	13
4	14
5	21
6	25
7	27
8	29
9	33
10	34
11	35
12	37
13	38
14	39
15	44
16	45
17	47
18	49
19	50
20	51
21	54
22	55
23	56
24	57
25	59
26	61
27	64
28	67
29	69
30	73
31	74
32	75
33	77
34	79
35	81
36	83
37	84
38	85
39	86
40	89
41	90
42	91
43	92
44	93
45	94
46	95
47	97
48	98
49	101
50	103
51	105
52	107
53	110
54	111
55	113
56	114
57	115
58	116
59	117
60	118
61	121
62	122
63	123
64	125

n	a(n)
1	9
2	11
3	13
4	14
5	21
6	25
7	27
8	29
9	33
10	34
11	35
12	37
13	38
14	39
15	44
16	45
17	47
18	49
19	50
20	51
21	54
22	55
23	56
24	57
25	59
26	61
27	64
28	67
29	69
30	73
31	74
32	75
33	77
34	79
35	81
36	83
37	84
38	85
39	86
40	89
41	90
42	91
43	92
44	93
45	94
46	95
47	97
48	98
49	101
50	103
51	105
52	107
53	110
54	111
55	113
56	114
57	115
58	116
59	117
60	118
61	121
62	122
63	123
64	125

n	a(n)
1	9
2	11
3	13
4	14
5	21
6	25
7	27
8	29
9	33
10	34
11	35
12	37
13	38
14	39
15	44
16	45
17	47
18	49
19	50
20	51
21	54
22	55
23	56
24	57
25	59
26	61
27	64
28	67
29	69
30	73
31	74
32	75
33	77
34	79
35	81
36	83
37	84
38	85
39	86
40	89
41	90
42	91
43	92
44	93
45	94
46	95
47	97
48	98
49	101
50	103
51	105
52	107
53	110
54	111
55	113
56	114
57	115
58	116
59	117
60	118
61	121
62	122
63	123
64	125