A339821 - cp's OEIS frontend

A339821 a(n) = phi(A019565(2n)), where phi is Euler totient function.

n	a(n)
0	1
1	2
2	4
3	8
4	6
5	12
6	24
7	48
8	10
9	20
10	40
11	80
12	60
13	120
14	240
15	480
16	12
17	24
18	48
19	96
20	72
21	144
22	288
23	576
24	120
25	240
26	480
27	960
28	720
29	1440
30	2880
31	5760
32	16
33	32
34	64
35	128
36	96
37	192
38	384
39	768
40	160
41	320
42	640
43	1280
44	960
45	1920
46	3840
47	7680
48	192
49	384
50	768
51	1536
52	1152
53	2304
54	4608
55	9216
56	1920
57	3840
58	7680
59	15360
60	11520
61	23040
62	46080
63	92160

[1, 2, 4, 8, 6, 12, 24, 48, 10, 20, 40, 80, 60, 120, 240, 480, 12, 24, 48, 96, 72, 144, 288, 576, 120, 240, 480, 960, 720, 1440, 2880, 5760, 16, 32, 64, 128, 96, 192, 384, 768, 160, 320, 640, 1280, 960, 1920, 3840, 7680, 192, 384, 768, 1536, 1152, 2304, 4608, 9216, 1920, 3840, 7680, 15360, 11520, 23040, 46080, 92160]

cp's OEIS Frontend

A339821 a(n) = phi(A019565(2n)), where phi is Euler totient function.

Table of values

List of values