A062955 - cp's OEIS frontend

A062955 a(n) = phi(n^2) - phi(n) = (n-1) * phi(n).

n	a(n)
1	0
2	1
3	4
4	6
5	16
6	10
7	36
8	28
9	48
10	36
11	100
12	44
13	144
14	78
15	112
16	120
17	256
18	102
19	324
20	152
21	240
22	210
23	484
24	184
25	480
26	300
27	468
28	324
29	784
30	232
31	900
32	496
33	640
34	528
35	816
36	420
37	1296
38	666
39	912
40	624
41	1600
42	492
43	1764
44	860
45	1056
46	990
47	2116
48	752
49	2016
50	980
51	1600
52	1224
53	2704

[0, 1, 4, 6, 16, 10, 36, 28, 48, 36, 100, 44, 144, 78, 112, 120, 256, 102, 324, 152, 240, 210, 484, 184, 480, 300, 468, 324, 784, 232, 900, 496, 640, 528, 816, 420, 1296, 666, 912, 624, 1600, 492, 1764, 860, 1056, 990, 2116, 752, 2016, 980, 1600, 1224, 2704]

cp's OEIS Frontend

A062955 a(n) = phi(n^2) - phi(n) = (n-1) * phi(n).

Table of values

List of values