A337122 - cp's OEIS frontend

A337122 a(n) is the smallest positive integer k for which the mod-k Collatz orbit has the same length as the ordinary Collatz orbit.

n	a(n)
1	5
2	4
3	17
4	5
5	17
6	17
7	53
8	9
9	53
10	17
11	53
12	17
13	17
14	53
15	59
16	17
17	53
18	53
19	74
20	17
21	18
22	53
23	59
24	25
25	61
26	34
27	1829
28	53
29	74
30	59
31	1829
32	27
33	101
34	53
35	44
36	53
37	93
38	74
39	225
40	17
41	1829
42	18
43	163
44	53
45	57
46	59
47	1829
48	39
49	77
50	61
51	95
52	53
53	34
54	1829
55	1829
56	57
57	197
58	74
59	225
60	89

[5, 4, 17, 5, 17, 17, 53, 9, 53, 17, 53, 17, 17, 53, 59, 17, 53, 53, 74, 17, 18, 53, 59, 25, 61, 34, 1829, 53, 74, 59, 1829, 27, 101, 53, 44, 53, 93, 74, 225, 17, 1829, 18, 163, 53, 57, 59, 1829, 39, 77, 61, 95, 53, 34, 1829, 1829, 57, 197, 74, 225, 89]

cp's OEIS Frontend

A337122 a(n) is the smallest positive integer k for which the mod-k Collatz orbit has the same length as the ordinary Collatz orbit.

Table of values

List of values