A375267 - cp's OEIS frontend

A375267 Number of iterations of the A375265 map to reach 1 starting from n, or -1 if 1 is never reached.

n	a(n)
1	0
2	1
3	1
4	2
5	5
6	2
7	16
8	3
9	2
10	6
11	14
12	3
13	9
14	17
15	6
16	4
17	12
18	3
19	20
20	7
21	17
22	15
23	15
24	4
25	23
26	10
27	3
28	18
29	18
30	7
31	106
32	5
33	15
34	13
35	13
36	4
37	21
38	21
39	10
40	8
41	109
42	18
43	29
44	16
45	7
46	16
47	104
48	5
49	24
50	24
51	13
52	11
53	11
54	4
55	112
56	19
57	21
58	19
59	32
60	8
61	19
62	107
63	18
64	6
65	27
66	16
67	27
68	14
69	16
70	14
71	102

[0, 1, 1, 2, 5, 2, 16, 3, 2, 6, 14, 3, 9, 17, 6, 4, 12, 3, 20, 7, 17, 15, 15, 4, 23, 10, 3, 18, 18, 7, 106, 5, 15, 13, 13, 4, 21, 21, 10, 8, 109, 18, 29, 16, 7, 16, 104, 5, 24, 24, 13, 11, 11, 4, 112, 19, 21, 19, 32, 8, 19, 107, 18, 6, 27, 16, 27, 14, 16, 14, 102]

cp's OEIS Frontend

A375267 Number of iterations of the A375265 map to reach 1 starting from n, or -1 if 1 is never reached.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	5
6	2
7	16
8	3
9	2
10	6
11	14
12	3
13	9
14	17
15	6
16	4
17	12
18	3
19	20
20	7
21	17
22	15
23	15
24	4
25	23
26	10
27	3
28	18
29	18
30	7
31	106
32	5
33	15
34	13
35	13
36	4
37	21
38	21
39	10
40	8
41	109
42	18
43	29
44	16
45	7
46	16
47	104
48	5
49	24
50	24
51	13
52	11
53	11
54	4
55	112
56	19
57	21
58	19
59	32
60	8
61	19
62	107
63	18
64	6
65	27
66	16
67	27
68	14
69	16
70	14
71	102

n	a(n)
1	0
2	1
3	1
4	2
5	5
6	2
7	16
8	3
9	2
10	6
11	14
12	3
13	9
14	17
15	6
16	4
17	12
18	3
19	20
20	7
21	17
22	15
23	15
24	4
25	23
26	10
27	3
28	18
29	18
30	7
31	106
32	5
33	15
34	13
35	13
36	4
37	21
38	21
39	10
40	8
41	109
42	18
43	29
44	16
45	7
46	16
47	104
48	5
49	24
50	24
51	13
52	11
53	11
54	4
55	112
56	19
57	21
58	19
59	32
60	8
61	19
62	107
63	18
64	6
65	27
66	16
67	27
68	14
69	16
70	14
71	102

n	a(n)
1	0
2	1
3	1
4	2
5	5
6	2
7	16
8	3
9	2
10	6
11	14
12	3
13	9
14	17
15	6
16	4
17	12
18	3
19	20
20	7
21	17
22	15
23	15
24	4
25	23
26	10
27	3
28	18
29	18
30	7
31	106
32	5
33	15
34	13
35	13
36	4
37	21
38	21
39	10
40	8
41	109
42	18
43	29
44	16
45	7
46	16
47	104
48	5
49	24
50	24
51	13
52	11
53	11
54	4
55	112
56	19
57	21
58	19
59	32
60	8
61	19
62	107
63	18
64	6
65	27
66	16
67	27
68	14
69	16
70	14
71	102