A224361 - cp's OEIS frontend

A224361 The length of the Collatz (3k+1) sequence for all odd negative fractions and integers.

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

[1, 2, 2, 5, 3, 5, 3, 1, 6, 10, 5, 4, 8, 11, 5, 6, 4, 7, 12, 6, 9, 5, 2, 1, 12, 2, 10, 15, 4, 7, 9, 14, 7, 9, 16, 5, 12, 5, 10, 13, 4, 11, 6, 6, 18, 5, 5, 8, 1, 3, 12, 17, 5, 19, 37, 7, 5, 15, 13, 5, 10, 17, 7, 10, 38, 14, 7, 6, 2, 17, 8, 14, 7, 2, 20, 17, 15]

cp's OEIS Frontend

A224361 The length of the Collatz (3k+1) sequence for all odd negative fractions and integers.

Table of values

List of values

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

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

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