A325211 - cp's OEIS frontend

A325211 a(1) = 1; a(n) = Sum_{d|n, d tau(n/d) * a(d), where tau = A000005.

n	a(n)
1	1
2	2
3	2
4	7
5	2
6	12
7	2
8	24
9	7
10	12
11	2
12	58
13	2
14	12
15	12
16	82
17	2
18	58
19	2
20	58
21	12
22	12
23	2
24	256
25	7
26	12
27	24
28	58
29	2
30	104
31	2
32	280
33	12
34	12
35	12
36	355
37	2
38	12
39	12
40	256
41	2
42	104
43	2
44	58
45	58
46	12
47	2
48	1072
49	7
50	58
51	12
52	58
53	2
54	256
55	12
56	256
57	12
58	12
59	2
60	652
61	2
62	12
63	58
64	956
65	12
66	104
67	2
68	58
69	12
70	104

[1, 2, 2, 7, 2, 12, 2, 24, 7, 12, 2, 58, 2, 12, 12, 82, 2, 58, 2, 58, 12, 12, 2, 256, 7, 12, 24, 58, 2, 104, 2, 280, 12, 12, 12, 355, 2, 12, 12, 256, 2, 104, 2, 58, 58, 12, 2, 1072, 7, 58, 12, 58, 2, 256, 12, 256, 12, 12, 2, 652, 2, 12, 58, 956, 12, 104, 2, 58, 12, 104]

cp's OEIS Frontend

A325211 a(1) = 1; a(n) = Sum_{d|n, d tau(n/d) * a(d), where tau = A000005.

Table of values

List of values