A165552 - cp's OEIS frontend

A165552 a(1) = 1, and then a(n) is sum of k*a(k) where k and k divides n.

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	6
7	1
8	15
9	4
10	8
11	1
12	54
13	1
14	10
15	9
16	135
17	1
18	78
19	1
20	100
21	11
22	14
23	1
24	822
25	6
26	16
27	40
28	162
29	1
30	262
31	1
32	2295
33	15
34	20
35	13
36	2142
37	1
38	22
39	17
40	2220
41	1
42	420
43	1
44	334
45	180
46	26
47	1
48	22710
49	8
50	238
51	21
52	444
53	1
54	2562
55	17
56	4818
57	23
58	32
59	1
60	10782
61	1
62	34
63	278
64	75735
65	19
66	856
67	1
68	712

[1, 1, 1, 3, 1, 6, 1, 15, 4, 8, 1, 54, 1, 10, 9, 135, 1, 78, 1, 100, 11, 14, 1, 822, 6, 16, 40, 162, 1, 262, 1, 2295, 15, 20, 13, 2142, 1, 22, 17, 2220, 1, 420, 1, 334, 180, 26, 1, 22710, 8, 238, 21, 444, 1, 2562, 17, 4818, 23, 32, 1, 10782, 1, 34, 278, 75735, 19, 856, 1, 712]

cp's OEIS Frontend

A165552 a(1) = 1, and then a(n) is sum of k*a(k) where k and k divides n.

Table of values

List of values