A340967 - cp's OEIS frontend

A340967 a(n) is the number of iterations of the map x -> n mod sopfr(x) starting with n to reach 0 or 1, where sopfr = A001414.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	3
13	1
14	4
15	2
16	1
17	1
18	2
19	1
20	2
21	1
22	4
23	1
24	3
25	2
26	4
27	1
28	3
29	1
30	1
31	1
32	2
33	3
34	3
35	3
36	2
37	1
38	4
39	4
40	3
41	1
42	3
43	1
44	4
45	1
46	3
47	1
48	2
49	2
50	2
51	4
52	1
53	1
54	5
55	3
56	2
57	4
58	4
59	1
60	1
61	1
62	4
63	4
64	2
65	4
66	2
67	1
68	4
69	2
70	1
71	1
72	1
73	1
74	3
75	3
76	3
77	3
78	3
79	1
80	2
81	3
82	3
83	1
84	1
85	3
86	4
87	5
88	2
89	1
90	3
91	3
92	3
93	3
94	5
95	4
96	2
97	1
98	2
99	2

[0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 3, 1, 4, 2, 1, 1, 2, 1, 2, 1, 4, 1, 3, 2, 4, 1, 3, 1, 1, 1, 2, 3, 3, 3, 2, 1, 4, 4, 3, 1, 3, 1, 4, 1, 3, 1, 2, 2, 2, 4, 1, 1, 5, 3, 2, 4, 4, 1, 1, 1, 4, 4, 2, 4, 2, 1, 4, 2, 1, 1, 1, 1, 3, 3, 3, 3, 3, 1, 2, 3, 3, 1, 1, 3, 4, 5, 2, 1, 3, 3, 3, 3, 5, 4, 2, 1, 2, 2]

cp's OEIS Frontend

A340967 a(n) is the number of iterations of the map x -> n mod sopfr(x) starting with n to reach 0 or 1, where sopfr = A001414.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	3
13	1
14	4
15	2
16	1
17	1
18	2
19	1
20	2
21	1
22	4
23	1
24	3
25	2
26	4
27	1
28	3
29	1
30	1
31	1
32	2
33	3
34	3
35	3
36	2
37	1
38	4
39	4
40	3
41	1
42	3
43	1
44	4
45	1
46	3
47	1
48	2
49	2
50	2
51	4
52	1
53	1
54	5
55	3
56	2
57	4
58	4
59	1
60	1
61	1
62	4
63	4
64	2
65	4
66	2
67	1
68	4
69	2
70	1
71	1
72	1
73	1
74	3
75	3
76	3
77	3
78	3
79	1
80	2
81	3
82	3
83	1
84	1
85	3
86	4
87	5
88	2
89	1
90	3
91	3
92	3
93	3
94	5
95	4
96	2
97	1
98	2
99	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	3
13	1
14	4
15	2
16	1
17	1
18	2
19	1
20	2
21	1
22	4
23	1
24	3
25	2
26	4
27	1
28	3
29	1
30	1
31	1
32	2
33	3
34	3
35	3
36	2
37	1
38	4
39	4
40	3
41	1
42	3
43	1
44	4
45	1
46	3
47	1
48	2
49	2
50	2
51	4
52	1
53	1
54	5
55	3
56	2
57	4
58	4
59	1
60	1
61	1
62	4
63	4
64	2
65	4
66	2
67	1
68	4
69	2
70	1
71	1
72	1
73	1
74	3
75	3
76	3
77	3
78	3
79	1
80	2
81	3
82	3
83	1
84	1
85	3
86	4
87	5
88	2
89	1
90	3
91	3
92	3
93	3
94	5
95	4
96	2
97	1
98	2
99	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	2
11	1
12	3
13	1
14	4
15	2
16	1
17	1
18	2
19	1
20	2
21	1
22	4
23	1
24	3
25	2
26	4
27	1
28	3
29	1
30	1
31	1
32	2
33	3
34	3
35	3
36	2
37	1
38	4
39	4
40	3
41	1
42	3
43	1
44	4
45	1
46	3
47	1
48	2
49	2
50	2
51	4
52	1
53	1
54	5
55	3
56	2
57	4
58	4
59	1
60	1
61	1
62	4
63	4
64	2
65	4
66	2
67	1
68	4
69	2
70	1
71	1
72	1
73	1
74	3
75	3
76	3
77	3
78	3
79	1
80	2
81	3
82	3
83	1
84	1
85	3
86	4
87	5
88	2
89	1
90	3
91	3
92	3
93	3
94	5
95	4
96	2
97	1
98	2
99	2