A309322 - cp's OEIS frontend

A309322 Expansion of Sum_{k>=1} phi(k) * x^k/(1 - x^k)^3, where phi = Euler totient function (A000010).

n	a(n)
1	1
2	4
3	8
4	15
5	19
6	35
7	34
8	56
9	63
10	86
11	76
12	141
13	103
14	157
15	182
16	212
17	169
18	294
19	208
20	355
21	335
22	359
23	298
24	556
25	405
26	490
27	522
28	657
29	463
30	865
31	526
32	816
33	773
34	812
35	856
36	1239
37	739
38	1003
39	1058
40	1424
41	901
42	1610
43	988
44	1525
45	1617
46	1445
47	1174
48	2188
49	1435
50	1960
51	1760
52	2091
53	1483
54	2529
55	1994

[1, 4, 8, 15, 19, 35, 34, 56, 63, 86, 76, 141, 103, 157, 182, 212, 169, 294, 208, 355, 335, 359, 298, 556, 405, 490, 522, 657, 463, 865, 526, 816, 773, 812, 856, 1239, 739, 1003, 1058, 1424, 901, 1610, 988, 1525, 1617, 1445, 1174, 2188, 1435, 1960, 1760, 2091, 1483, 2529, 1994]

cp's OEIS Frontend

A309322 Expansion of Sum_{k>=1} phi(k) * x^k/(1 - x^k)^3, where phi = Euler totient function (A000010).

Table of values

List of values