A357821 - cp's OEIS frontend

A357821 Denominators of the partial alternating sums of the reciprocals of the Dedekind psi function (A001615).

n	a(n)
1	1
2	3
3	12
4	4
5	12
6	6
7	24
8	8
9	24
10	72
11	72
12	18
13	63
14	504
15	63
16	504
17	168
18	504
19	2520
20	2520
21	10080
22	1120
23	3360
24	3360
25	672
26	224
27	2016
28	2016
29	10080
30	10080
31	5040
32	2520
33	5040
34	15120
35	1890
36	7560
37	143640
38	143640
39	17955
40	143640
41	143640
42	574560
43	6320160
44	6320160
45	6320160
46	6320160

[1, 3, 12, 4, 12, 6, 24, 8, 24, 72, 72, 18, 63, 504, 63, 504, 168, 504, 2520, 2520, 10080, 1120, 3360, 3360, 672, 224, 2016, 2016, 10080, 10080, 5040, 2520, 5040, 15120, 1890, 7560, 143640, 143640, 17955, 143640, 143640, 574560, 6320160, 6320160, 6320160, 6320160]

cp's OEIS Frontend

A357821 Denominators of the partial alternating sums of the reciprocals of the Dedekind psi function (A001615).

Table of values

List of values