A358557 - cp's OEIS frontend

A358557 Numbers k for which denominator(H(k)) < LCM(1..k), where harmonic numbers H(k) = Sum_{i=1..k} 1/i = r(k)/q(k).

n	a(n)
1	6
2	7
3	8
4	18
5	19
6	20
7	21
8	22
9	23
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	37
18	38
19	39
20	40
21	41
22	42
23	43
24	44
25	45
26	46
27	47
28	48
29	54
30	55
31	56
32	57
33	58
34	59
35	60
36	61
37	62
38	63
39	64
40	65
41	66
42	67
43	68
44	69
45	70
46	71
47	72
48	73
49	74
50	75
51	76
52	77
53	78
54	79
55	80
56	81
57	82
58	83
59	84
60	85
61	86
62	87
63	100
64	101
65	102

[6, 7, 8, 18, 19, 20, 21, 22, 23, 24, 25, 26, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 100, 101, 102]

cp's OEIS Frontend

A358557 Numbers k for which denominator(H(k)) < LCM(1..k), where harmonic numbers H(k) = Sum_{i=1..k} 1/i = r(k)/q(k).

Table of values

List of values

n	a(n)
1	6
2	7
3	8
4	18
5	19
6	20
7	21
8	22
9	23
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	37
18	38
19	39
20	40
21	41
22	42
23	43
24	44
25	45
26	46
27	47
28	48
29	54
30	55
31	56
32	57
33	58
34	59
35	60
36	61
37	62
38	63
39	64
40	65
41	66
42	67
43	68
44	69
45	70
46	71
47	72
48	73
49	74
50	75
51	76
52	77
53	78
54	79
55	80
56	81
57	82
58	83
59	84
60	85
61	86
62	87
63	100
64	101
65	102

n	a(n)
1	6
2	7
3	8
4	18
5	19
6	20
7	21
8	22
9	23
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	37
18	38
19	39
20	40
21	41
22	42
23	43
24	44
25	45
26	46
27	47
28	48
29	54
30	55
31	56
32	57
33	58
34	59
35	60
36	61
37	62
38	63
39	64
40	65
41	66
42	67
43	68
44	69
45	70
46	71
47	72
48	73
49	74
50	75
51	76
52	77
53	78
54	79
55	80
56	81
57	82
58	83
59	84
60	85
61	86
62	87
63	100
64	101
65	102

n	a(n)
1	6
2	7
3	8
4	18
5	19
6	20
7	21
8	22
9	23
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	37
18	38
19	39
20	40
21	41
22	42
23	43
24	44
25	45
26	46
27	47
28	48
29	54
30	55
31	56
32	57
33	58
34	59
35	60
36	61
37	62
38	63
39	64
40	65
41	66
42	67
43	68
44	69
45	70
46	71
47	72
48	73
49	74
50	75
51	76
52	77
53	78
54	79
55	80
56	81
57	82
58	83
59	84
60	85
61	86
62	87
63	100
64	101
65	102