A164941 - cp's OEIS frontend

A164941 a(n) = Sum_{d|n} phi(n/d)^(d-1).

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	5
7	2
8	5
9	6
10	7
11	2
12	17
13	2
14	9
15	34
16	15
17	2
18	45
19	2
20	87
21	102
22	13
23	2
24	191
25	258
26	15
27	294
28	289
29	2
30	1579
31	2
32	203
33	1126
34	19
35	5394
36	2577
37	2
38	21
39	4242
40	17227
41	2
42	16083
43	2
44	2037
45	83282
46	25
47	2
48	36107
49	46658
50	262423
51	65794
52	5839
53	2
54	139161
55	1058578
56	292455

[1, 2, 2, 3, 2, 5, 2, 5, 6, 7, 2, 17, 2, 9, 34, 15, 2, 45, 2, 87, 102, 13, 2, 191, 258, 15, 294, 289, 2, 1579, 2, 203, 1126, 19, 5394, 2577, 2, 21, 4242, 17227, 2, 16083, 2, 2037, 83282, 25, 2, 36107, 46658, 262423, 65794, 5839, 2, 139161, 1058578, 292455]

cp's OEIS Frontend

A164941 a(n) = Sum_{d|n} phi(n/d)^(d-1).

Table of values

List of values