A327572 - cp's OEIS frontend

A327572 Partial sums of an infinitary analog of Euler's phi function: a(n) = Sum_{k=1..n} iphi(k), where iphi is A091732.

n	a(n)
1	1
2	2
3	4
4	7
5	11
6	13
7	19
8	22
9	30
10	34
11	44
12	50
13	62
14	68
15	76
16	91
17	107
18	115
19	133
20	145
21	157
22	167
23	189
24	195
25	219
26	231
27	247
28	265
29	293
30	301
31	331
32	346
33	366
34	382
35	406
36	430
37	466
38	484
39	508
40	520
41	560
42	572
43	614
44	644
45	676
46	698
47	744
48	774
49	822
50	846
51	878
52	914
53	966
54	982
55	1022
56	1040

[1, 2, 4, 7, 11, 13, 19, 22, 30, 34, 44, 50, 62, 68, 76, 91, 107, 115, 133, 145, 157, 167, 189, 195, 219, 231, 247, 265, 293, 301, 331, 346, 366, 382, 406, 430, 466, 484, 508, 520, 560, 572, 614, 644, 676, 698, 744, 774, 822, 846, 878, 914, 966, 982, 1022, 1040]

cp's OEIS Frontend

A327572 Partial sums of an infinitary analog of Euler's phi function: a(n) = Sum_{k=1..n} iphi(k), where iphi is A091732.

Table of values

List of values