A265204 - cp's OEIS frontend

A265204 Sum of phi(i) over squarefree numbers i <= n.

n	a(n)
1	1
2	2
3	4
4	4
5	8
6	10
7	16
8	16
9	16
10	20
11	30
12	30
13	42
14	48
15	56
16	56
17	72
18	72
19	90
20	90
21	102
22	112
23	134
24	134
25	134
26	146
27	146
28	146
29	174
30	182
31	212
32	212
33	232
34	248
35	272
36	272
37	308
38	326
39	350
40	350
41	390
42	402
43	444
44	444
45	444
46	466
47	512
48	512
49	512
50	512
51	544
52	544
53	596
54	596
55	636
56	636
57	672
58	700
59	758
60	758
61	818
62	848
63	848
64	848
65	896
66	916
67	982
68	982
69	1026
70	1050

[1, 2, 4, 4, 8, 10, 16, 16, 16, 20, 30, 30, 42, 48, 56, 56, 72, 72, 90, 90, 102, 112, 134, 134, 134, 146, 146, 146, 174, 182, 212, 212, 232, 248, 272, 272, 308, 326, 350, 350, 390, 402, 444, 444, 444, 466, 512, 512, 512, 512, 544, 544, 596, 596, 636, 636, 672, 700, 758, 758, 818, 848, 848, 848, 896, 916, 982, 982, 1026, 1050]

cp's OEIS Frontend

A265204 Sum of phi(i) over squarefree numbers i <= n.

Table of values

List of values