A245497 - cp's OEIS frontend

A245497 a(n) = phi(n)^2/2, where phi(n) = A000010(n), the Euler totient function.

n	a(n)
3	2
4	2
5	8
6	2
7	18
8	8
9	18
10	8
11	50
12	8
13	72
14	18
15	32
16	32
17	128
18	18
19	162
20	32
21	72
22	50
23	242
24	32
25	200
26	72
27	162
28	72
29	392
30	32
31	450
32	128
33	200
34	128
35	288
36	72
37	648
38	162
39	288
40	128
41	800
42	72
43	882
44	200
45	288
46	242
47	1058
48	128
49	882
50	200
51	512
52	288
53	1352
54	162
55	800
56	288
57	648
58	392
59	1682

[2, 2, 8, 2, 18, 8, 18, 8, 50, 8, 72, 18, 32, 32, 128, 18, 162, 32, 72, 50, 242, 32, 200, 72, 162, 72, 392, 32, 450, 128, 200, 128, 288, 72, 648, 162, 288, 128, 800, 72, 882, 200, 288, 242, 1058, 128, 882, 200, 512, 288, 1352, 162, 800, 288, 648, 392, 1682]

cp's OEIS Frontend

A245497 a(n) = phi(n)^2/2, where phi(n) = A000010(n), the Euler totient function.

Table of values

List of values