A068585 - cp's OEIS frontend

A068585 Numbers k such that the denominator of (Sum_{j=1..k} 1/j)^3 equals the denominator of Sum_{j=1..k} 1/j^3.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	9
7	10
8	11
9	12
10	13
11	14
12	15
13	16
14	17
15	27
16	28
17	29
18	30
19	31
20	32
21	88
22	89
23	90
24	91
25	92
26	93
27	94
28	95
29	96
30	97
31	98
32	99
33	136
34	137
35	138
36	139
37	140
38	141
39	142
40	143
41	144
42	145
43	146
44	147
45	289
46	290
47	291
48	292
49	293
50	1004
51	1005
52	1006
53	1007
54	1008
55	1009
56	1010
57	1011
58	1012
59	1013

[1, 2, 3, 4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 17, 27, 28, 29, 30, 31, 32, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 289, 290, 291, 292, 293, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013]

cp's OEIS Frontend

A068585 Numbers k such that the denominator of (Sum_{j=1..k} 1/j)^3 equals the denominator of Sum_{j=1..k} 1/j^3.

Table of values

List of values