A326828 - cp's OEIS frontend

A326828 a(n) = (1/2) * Sum_{d|n} mu(n/d) * phi(d) * (psi(d) + 1), where mu = A008683, phi = A000010 and psi = A001615.

n	a(n)
1	1
2	1
3	4
4	5
5	13
6	7
7	26
8	19
9	34
10	23
11	64
12	32
13	89
14	47
15	82
16	74
17	151
18	64
19	188
20	105
21	167
22	119
23	274
24	127
25	296
26	167
27	294
28	214
29	433
30	161
31	494
32	292
33	421
34	287
35	548
36	290
37	701
38	359
39	590
40	417
41	859
42	329
43	944
44	540
45	742
46	527
47	1126
48	506
49	1170
50	576
51	1012
52	757
53	1429
54	576
55	1382

[1, 1, 4, 5, 13, 7, 26, 19, 34, 23, 64, 32, 89, 47, 82, 74, 151, 64, 188, 105, 167, 119, 274, 127, 296, 167, 294, 214, 433, 161, 494, 292, 421, 287, 548, 290, 701, 359, 590, 417, 859, 329, 944, 540, 742, 527, 1126, 506, 1170, 576, 1012, 757, 1429, 576, 1382]

cp's OEIS Frontend

A326828 a(n) = (1/2) * Sum_{d|n} mu(n/d) * phi(d) * (psi(d) + 1), where mu = A008683, phi = A000010 and psi = A001615.

Table of values

List of values