A333609 - cp's OEIS frontend

A333609 The number of iterations of the infinitary totient function iphi (A091732) required to reach from n to 1.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	2
7	3
8	3
9	4
10	4
11	5
12	3
13	4
14	3
15	4
16	5
17	6
18	4
19	5
20	4
21	4
22	5
23	6
24	3
25	4
26	4
27	6
28	5
29	6
30	4
31	5
32	5
33	5
34	6
35	4
36	4
37	5
38	5
39	4
40	4
41	5
42	4
43	5
44	5
45	6
46	6
47	7
48	5
49	6
50	4
51	6
52	5
53	6
54	6
55	5
56	5
57	5
58	6
59	7
60	4
61	5
62	5
63	6
64	7
65	6
66	5
67	6
68	6
69	6
70	4
71	5
72	4
73	5
74	5
75	6
76	7
77	5
78	4
79	5
80	5
81	6
82	5
83	6
84	5
85	8
86	5
87	6

[0, 1, 2, 3, 4, 2, 3, 3, 4, 4, 5, 3, 4, 3, 4, 5, 6, 4, 5, 4, 4, 5, 6, 3, 4, 4, 6, 5, 6, 4, 5, 5, 5, 6, 4, 4, 5, 5, 4, 4, 5, 4, 5, 5, 6, 6, 7, 5, 6, 4, 6, 5, 6, 6, 5, 5, 5, 6, 7, 4, 5, 5, 6, 7, 6, 5, 6, 6, 6, 4, 5, 4, 5, 5, 6, 7, 5, 4, 5, 5, 6, 5, 6, 5, 8, 5, 6]

cp's OEIS Frontend

A333609 The number of iterations of the infinitary totient function iphi (A091732) required to reach from n to 1.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	2
7	3
8	3
9	4
10	4
11	5
12	3
13	4
14	3
15	4
16	5
17	6
18	4
19	5
20	4
21	4
22	5
23	6
24	3
25	4
26	4
27	6
28	5
29	6
30	4
31	5
32	5
33	5
34	6
35	4
36	4
37	5
38	5
39	4
40	4
41	5
42	4
43	5
44	5
45	6
46	6
47	7
48	5
49	6
50	4
51	6
52	5
53	6
54	6
55	5
56	5
57	5
58	6
59	7
60	4
61	5
62	5
63	6
64	7
65	6
66	5
67	6
68	6
69	6
70	4
71	5
72	4
73	5
74	5
75	6
76	7
77	5
78	4
79	5
80	5
81	6
82	5
83	6
84	5
85	8
86	5
87	6

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	2
7	3
8	3
9	4
10	4
11	5
12	3
13	4
14	3
15	4
16	5
17	6
18	4
19	5
20	4
21	4
22	5
23	6
24	3
25	4
26	4
27	6
28	5
29	6
30	4
31	5
32	5
33	5
34	6
35	4
36	4
37	5
38	5
39	4
40	4
41	5
42	4
43	5
44	5
45	6
46	6
47	7
48	5
49	6
50	4
51	6
52	5
53	6
54	6
55	5
56	5
57	5
58	6
59	7
60	4
61	5
62	5
63	6
64	7
65	6
66	5
67	6
68	6
69	6
70	4
71	5
72	4
73	5
74	5
75	6
76	7
77	5
78	4
79	5
80	5
81	6
82	5
83	6
84	5
85	8
86	5
87	6

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	2
7	3
8	3
9	4
10	4
11	5
12	3
13	4
14	3
15	4
16	5
17	6
18	4
19	5
20	4
21	4
22	5
23	6
24	3
25	4
26	4
27	6
28	5
29	6
30	4
31	5
32	5
33	5
34	6
35	4
36	4
37	5
38	5
39	4
40	4
41	5
42	4
43	5
44	5
45	6
46	6
47	7
48	5
49	6
50	4
51	6
52	5
53	6
54	6
55	5
56	5
57	5
58	6
59	7
60	4
61	5
62	5
63	6
64	7
65	6
66	5
67	6
68	6
69	6
70	4
71	5
72	4
73	5
74	5
75	6
76	7
77	5
78	4
79	5
80	5
81	6
82	5
83	6
84	5
85	8
86	5
87	6