A354094 - cp's OEIS frontend

A354094 a(n) = phi(A354091(n)), where A354091 is fully multiplicative prime shift which replaces the primes of the form 3k+2 by the next larger such prime, while other primes stay as they are, and phi is Euler totient function.

n	a(n)
1	1
2	4
3	2
4	20
5	10
6	8
7	6
8	100
9	6
10	40
11	16
12	40
13	12
14	24
15	20
16	500
17	22
18	24
19	18
20	200
21	12
22	64
23	28
24	200
25	110
26	48
27	18
28	120
29	40
30	80
31	30
32	2500
33	32
34	88
35	60
36	120
37	36
38	72
39	24
40	1000
41	46
42	48
43	42
44	320
45	60
46	112
47	52
48	1000
49	42
50	440
51	44
52	240
53	58
54	72
55	160
56	600
57	36
58	160
59	70
60	400
61	60
62	120
63	36
64	12500
65	120
66	128
67	66
68	440
69	56
70	240
71	82
72	600
73	72

[1, 4, 2, 20, 10, 8, 6, 100, 6, 40, 16, 40, 12, 24, 20, 500, 22, 24, 18, 200, 12, 64, 28, 200, 110, 48, 18, 120, 40, 80, 30, 2500, 32, 88, 60, 120, 36, 72, 24, 1000, 46, 48, 42, 320, 60, 112, 52, 1000, 42, 440, 44, 240, 58, 72, 160, 600, 36, 160, 70, 400, 60, 120, 36, 12500, 120, 128, 66, 440, 56, 240, 82, 600, 72]

cp's OEIS Frontend

A354094 a(n) = phi(A354091(n)), where A354091 is fully multiplicative prime shift which replaces the primes of the form 3k+2 by the next larger such prime, while other primes stay as they are, and phi is Euler totient function.

Table of values

List of values