A372997 - cp's OEIS frontend

A372997 a(n) = Sum_{k=1..n} tau( (n/gcd(k,n))^3 ).

n	a(n)
1	1
2	5
3	9
4	19
5	17
6	45
7	25
8	59
9	51
10	85
11	41
12	171
13	49
14	125
15	153
16	163
17	65
18	255
19	73
20	323
21	225
22	205
23	89
24	531
25	157
26	245
27	231
28	475
29	113
30	765
31	121
32	419
33	369
34	325
35	425
36	969
37	145
38	365
39	441
40	1003
41	161
42	1125
43	169
44	779
45	867
46	445
47	185
48	1467
49	319
50	785
51	585
52	931
53	209
54	1155
55	697
56	1475

[1, 5, 9, 19, 17, 45, 25, 59, 51, 85, 41, 171, 49, 125, 153, 163, 65, 255, 73, 323, 225, 205, 89, 531, 157, 245, 231, 475, 113, 765, 121, 419, 369, 325, 425, 969, 145, 365, 441, 1003, 161, 1125, 169, 779, 867, 445, 185, 1467, 319, 785, 585, 931, 209, 1155, 697, 1475]

cp's OEIS Frontend

A372997 a(n) = Sum_{k=1..n} tau( (n/gcd(k,n))^3 ).

Table of values

List of values