A344225 - cp's OEIS frontend

A344225 a(n) = Sum_{k=1..n} tau(gcd(k,n)^(n/gcd(k,n))), where tau(n) is the number of divisors of n.

n	a(n)
1	1
2	3
3	4
4	8
5	6
6	17
7	8
8	23
9	17
10	35
11	12
12	57
13	14
14	61
15	44
16	74
17	18
18	123
19	20
20	121
21	72
22	137
23	24
24	215
25	47
26	187
27	96
28	217
29	30
30	387
31	32
32	261
33	152
34	311
35	100
36	488
37	38
38	385
39	204
40	441
41	42
42	813
43	44
44	505
45	294
46	557
47	48
48	961
49	93
50	739
51	332
52	697
53	54
54	1333
55	188
56	787
57	408
58	875
59	60
60	1723
61	62
62	997
63	488
64	976
65	244
66	2433
67	68

[1, 3, 4, 8, 6, 17, 8, 23, 17, 35, 12, 57, 14, 61, 44, 74, 18, 123, 20, 121, 72, 137, 24, 215, 47, 187, 96, 217, 30, 387, 32, 261, 152, 311, 100, 488, 38, 385, 204, 441, 42, 813, 44, 505, 294, 557, 48, 961, 93, 739, 332, 697, 54, 1333, 188, 787, 408, 875, 60, 1723, 62, 997, 488, 976, 244, 2433, 68]

cp's OEIS Frontend

A344225 a(n) = Sum_{k=1..n} tau(gcd(k,n)^(n/gcd(k,n))), where tau(n) is the number of divisors of n.

Table of values

List of values