A349171 - cp's OEIS frontend

A349171 a(n) = Sum_{d|n} phi(d) * A003959(n/d), where A003959 is fully multiplicative with a(p) = (p+1), and phi is Euler totient function.

n	a(n)
1	1
2	4
3	6
4	14
5	10
6	24
7	14
8	46
9	30
10	40
11	22
12	84
13	26
14	56
15	60
16	146
17	34
18	120
19	38
20	140
21	84
22	88
23	46
24	276
25	80
26	104
27	138
28	196
29	58
30	240
31	62
32	454
33	132
34	136
35	140
36	420
37	74
38	152
39	156
40	460
41	82
42	336
43	86
44	308
45	300
46	184
47	94
48	876
49	154
50	320
51	204
52	364
53	106
54	552
55	220
56	644
57	228
58	232
59	118
60	840
61	122
62	248
63	420
64	1394
65	260
66	528
67	134
68	476
69	276

[1, 4, 6, 14, 10, 24, 14, 46, 30, 40, 22, 84, 26, 56, 60, 146, 34, 120, 38, 140, 84, 88, 46, 276, 80, 104, 138, 196, 58, 240, 62, 454, 132, 136, 140, 420, 74, 152, 156, 460, 82, 336, 86, 308, 300, 184, 94, 876, 154, 320, 204, 364, 106, 552, 220, 644, 228, 232, 118, 840, 122, 248, 420, 1394, 260, 528, 134, 476, 276]

cp's OEIS Frontend

A349171 a(n) = Sum_{d|n} phi(d) * A003959(n/d), where A003959 is fully multiplicative with a(p) = (p+1), and phi is Euler totient function.

Table of values

List of values