A364581 - cp's OEIS frontend

A364581 Numbers k such that the number of iterations of psi(phi(x)) starting at x = k and terminating when psi(phi(x)) = x (k is counted), -1 otherwise is the same for phi(psi(k)).

n	a(n)
1	1
2	4
3	8
4	14
5	15
6	16
7	21
8	22
9	26
10	28
11	32
12	39
13	44
14	45
15	46
16	50
17	51
18	52
19	56
20	58
21	64
22	74
23	82
24	85
25	86
26	88
27	92
28	94
29	98
30	100
31	104
32	105
33	111
34	112
35	114
36	116
37	118
38	122
39	128
40	129
41	135
42	142
43	146
44	147
45	148
46	153
47	154
48	159
49	164
50	165
51	166
52	172
53	176
54	178
55	182
56	183
57	184
58	186
59	188

[1, 4, 8, 14, 15, 16, 21, 22, 26, 28, 32, 39, 44, 45, 46, 50, 51, 52, 56, 58, 64, 74, 82, 85, 86, 88, 92, 94, 98, 100, 104, 105, 111, 112, 114, 116, 118, 122, 128, 129, 135, 142, 146, 147, 148, 153, 154, 159, 164, 165, 166, 172, 176, 178, 182, 183, 184, 186, 188]

cp's OEIS Frontend

A364581 Numbers k such that the number of iterations of psi(phi(x)) starting at x = k and terminating when psi(phi(x)) = x (k is counted), -1 otherwise is the same for phi(psi(k)).

Table of values

List of values

n	a(n)
1	1
2	4
3	8
4	14
5	15
6	16
7	21
8	22
9	26
10	28
11	32
12	39
13	44
14	45
15	46
16	50
17	51
18	52
19	56
20	58
21	64
22	74
23	82
24	85
25	86
26	88
27	92
28	94
29	98
30	100
31	104
32	105
33	111
34	112
35	114
36	116
37	118
38	122
39	128
40	129
41	135
42	142
43	146
44	147
45	148
46	153
47	154
48	159
49	164
50	165
51	166
52	172
53	176
54	178
55	182
56	183
57	184
58	186
59	188

n	a(n)
1	1
2	4
3	8
4	14
5	15
6	16
7	21
8	22
9	26
10	28
11	32
12	39
13	44
14	45
15	46
16	50
17	51
18	52
19	56
20	58
21	64
22	74
23	82
24	85
25	86
26	88
27	92
28	94
29	98
30	100
31	104
32	105
33	111
34	112
35	114
36	116
37	118
38	122
39	128
40	129
41	135
42	142
43	146
44	147
45	148
46	153
47	154
48	159
49	164
50	165
51	166
52	172
53	176
54	178
55	182
56	183
57	184
58	186
59	188

n	a(n)
1	1
2	4
3	8
4	14
5	15
6	16
7	21
8	22
9	26
10	28
11	32
12	39
13	44
14	45
15	46
16	50
17	51
18	52
19	56
20	58
21	64
22	74
23	82
24	85
25	86
26	88
27	92
28	94
29	98
30	100
31	104
32	105
33	111
34	112
35	114
36	116
37	118
38	122
39	128
40	129
41	135
42	142
43	146
44	147
45	148
46	153
47	154
48	159
49	164
50	165
51	166
52	172
53	176
54	178
55	182
56	183
57	184
58	186
59	188