A384818 - cp's OEIS frontend

A384818 Denominator of the sum of the reciprocals of all square divisors of all positive integers <= n.

n	a(n)
1	1
2	1
3	1
4	4
5	4
6	4
7	4
8	2
9	18
10	18
11	18
12	36
13	36
14	36
15	36
16	144
17	144
18	144
19	144
20	144
21	144
22	144
23	144
24	144
25	3600
26	3600
27	1200
28	1200
29	1200
30	1200
31	1200
32	600
33	600
34	600
35	600
36	1800
37	1800
38	1800
39	1800
40	1800
41	1800
42	1800
43	1800
44	1800
45	600
46	600
47	600
48	1200
49	58800
50	58800
51	58800
52	58800
53	58800

[1, 1, 1, 4, 4, 4, 4, 2, 18, 18, 18, 36, 36, 36, 36, 144, 144, 144, 144, 144, 144, 144, 144, 144, 3600, 3600, 1200, 1200, 1200, 1200, 1200, 600, 600, 600, 600, 1800, 1800, 1800, 1800, 1800, 1800, 1800, 1800, 1800, 600, 600, 600, 1200, 58800, 58800, 58800, 58800, 58800]

cp's OEIS Frontend

A384818 Denominator of the sum of the reciprocals of all square divisors of all positive integers <= n.

Table of values

List of values