A318443 - cp's OEIS frontend

A318443 Numerators of the sequence whose Dirichlet convolution with itself yields A018804, Pillai's arithmetical function: Sum_{k=1..n} gcd(k, n).

n	a(n)
1	1
2	3
3	5
4	23
5	9
6	15
7	13
8	91
9	59
10	27
11	21
12	115
13	25
14	39
15	45
16	1451
17	33
18	177
19	37
20	207
21	65
22	63
23	45
24	455
25	179
26	75
27	353
28	299
29	57
30	135
31	61
32	5797
33	105
34	99
35	117
36	1357
37	73
38	111
39	125
40	819
41	81
42	195
43	85
44	483
45	531
46	135
47	93
48	7255
49	363
50	537
51	165
52	575
53	105
54	1059
55	189
56	1183
57	185
58	171
59	117
60	1035
61	121
62	183
63	767
64	46355
65	225
66	315
67	133
68	759
69	225
70	351
71	141
72	5369

[1, 3, 5, 23, 9, 15, 13, 91, 59, 27, 21, 115, 25, 39, 45, 1451, 33, 177, 37, 207, 65, 63, 45, 455, 179, 75, 353, 299, 57, 135, 61, 5797, 105, 99, 117, 1357, 73, 111, 125, 819, 81, 195, 85, 483, 531, 135, 93, 7255, 363, 537, 165, 575, 105, 1059, 189, 1183, 185, 171, 117, 1035, 121, 183, 767, 46355, 225, 315, 133, 759, 225, 351, 141, 5369]

cp's OEIS Frontend

A318443 Numerators of the sequence whose Dirichlet convolution with itself yields A018804, Pillai's arithmetical function: Sum_{k=1..n} gcd(k, n).

Table of values

List of values