A368690 - cp's OEIS frontend

A368690 Number of terms in the trajectory from n to 2 of the map x -> A368241(x), or -1 if n never reaches 2.

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

[5, 2, 4, 2, 8, 3, 9, 6, 7, 2, 8, 7, 10, 6, 9, 2, 7, 6, 9, 6, 17, 8, 16, 8, 6, 5, 8, 2, 3, 16, 7, 15, 7, 5, 9, 10, 7, 6, 8, 2, 15, 6, 14, 6, 5, 10, 8, 9, 6, 5, 7, 7, 16, 3, 14, 5, 13, 2, 14, 4, 9, 7, 8, 5, 5, 13, 6, 6, 15, 2, 13, 11, 10, 12, 28, 5, 13, 3, 8, 6, 7, 15, 3, 4, 12, 5]

cp's OEIS Frontend

A368690 Number of terms in the trajectory from n to 2 of the map x -> A368241(x), or -1 if n never reaches 2.

Table of values

List of values

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

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

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