A224254 - cp's OEIS frontend

A224254 Full cycle lengths in the Collatz (3x+1) problem when the negative integers are used.

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

[2, 2, 2, 2, 5, 2, 5, 2, 5, 5, 2, 2, 5, 5, 2, 2, 18, 5, 5, 5, 18, 2, 18, 2, 18, 5, 5, 5, 2, 2, 18, 2, 18, 18, 5, 5, 18, 5, 2, 5, 18, 18, 2, 2, 18, 18, 5, 2, 18, 18, 5, 5, 2, 5, 18, 5, 2, 2, 2, 2, 18, 18, 5, 2, 2, 18, 18, 18, 2, 5, 2, 5, 18, 18, 5, 5, 2, 2, 2, 5, 5]

cp's OEIS Frontend

A224254 Full cycle lengths in the Collatz (3x+1) problem when the negative integers are used.

Table of values

List of values

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

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

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