A327407 - cp's OEIS frontend

A327407 Number of steps to reach a fixed point starting with n and repeatedly taking the quotient over the maximum divisor that is 1, prime, or whose prime indices are pairwise coprime. (A327389, A327401).

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

[0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 3, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 2, 1, 1, 2]

cp's OEIS Frontend

A327407 Number of steps to reach a fixed point starting with n and repeatedly taking the quotient over the maximum divisor that is 1, prime, or whose prime indices are pairwise coprime. (A327389, A327401).

Table of values

List of values

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

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

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