A065080 - cp's OEIS frontend

A065080 Denominator of Sum_{k=1..n} d(k)/k, where d() = A000005().

n	a(n)
1	1
2	1
3	3
4	12
5	60
6	60
7	420
8	420
9	420
10	420
11	4620
12	4620
13	60060
14	60060
15	60060
16	240240
17	4084080
18	4084080
19	77597520
20	77597520
21	25865840
22	25865840
23	594914320
24	1784742960
25	8923714800
26	8923714800
27	80313433200
28	80313433200
29	2329089562800
30	2329089562800
31	72201776446800

[1, 1, 3, 12, 60, 60, 420, 420, 420, 420, 4620, 4620, 60060, 60060, 60060, 240240, 4084080, 4084080, 77597520, 77597520, 25865840, 25865840, 594914320, 1784742960, 8923714800, 8923714800, 80313433200, 80313433200, 2329089562800, 2329089562800, 72201776446800]

cp's OEIS Frontend

A065080 Denominator of Sum_{k=1..n} d(k)/k, where d() = A000005().

Table of values

List of values