A362632 - cp's OEIS frontend

A362632 a(n) = Sum_{d|n, gcd(d,n/d)=1} d * psi(d), where psi is the Dedekind psi function (A001615).

n	a(n)
1	1
2	7
3	13
4	25
5	31
6	91
7	57
8	97
9	109
10	217
11	133
12	325
13	183
14	399
15	403
16	385
17	307
18	763
19	381
20	775
21	741
22	931
23	553
24	1261
25	751
26	1281
27	973
28	1425
29	871
30	2821
31	993
32	1537
33	1729
34	2149
35	1767
36	2725
37	1407
38	2667
39	2379
40	3007
41	1723
42	5187
43	1893
44	3325
45	3379
46	3871
47	2257
48	5005
49	2745
50	5257
51	3991
52	4575
53	2863

[1, 7, 13, 25, 31, 91, 57, 97, 109, 217, 133, 325, 183, 399, 403, 385, 307, 763, 381, 775, 741, 931, 553, 1261, 751, 1281, 973, 1425, 871, 2821, 993, 1537, 1729, 2149, 1767, 2725, 1407, 2667, 2379, 3007, 1723, 5187, 1893, 3325, 3379, 3871, 2257, 5005, 2745, 5257, 3991, 4575, 2863]

cp's OEIS Frontend

A362632 a(n) = Sum_{d|n, gcd(d,n/d)=1} d * psi(d), where psi is the Dedekind psi function (A001615).

Table of values

List of values