A318444 - cp's OEIS frontend

A318444 Numerators of the sequence whose Dirichlet convolution with itself yields A057660(n) = Sum_{k=1..n} n/gcd(n,k).

n	a(n)
1	1
2	3
3	7
4	35
5	21
6	21
7	43
8	239
9	195
10	63
11	111
12	245
13	157
14	129
15	147
16	6851
17	273
18	585
19	343
20	735
21	301
22	333
23	507
24	1673
25	1643
26	471
27	3011
28	1505
29	813
30	441
31	931
32	50141
33	777
34	819
35	903
36	6825
37	1333
38	1029
39	1099
40	5019
41	1641
42	903
43	1807
44	3885
45	4095
46	1521
47	2163
48	47957
49	6555
50	4929
51	1911
52	5495
53	2757
54	9033
55	2331
56	10277
57	2401
58	2439
59	3423

[1, 3, 7, 35, 21, 21, 43, 239, 195, 63, 111, 245, 157, 129, 147, 6851, 273, 585, 343, 735, 301, 333, 507, 1673, 1643, 471, 3011, 1505, 813, 441, 931, 50141, 777, 819, 903, 6825, 1333, 1029, 1099, 5019, 1641, 903, 1807, 3885, 4095, 1521, 2163, 47957, 6555, 4929, 1911, 5495, 2757, 9033, 2331, 10277, 2401, 2439, 3423]

cp's OEIS Frontend

A318444 Numerators of the sequence whose Dirichlet convolution with itself yields A057660(n) = Sum_{k=1..n} n/gcd(n,k).

Table of values

List of values