A210468 - cp's OEIS frontend

A210468 Collatz (3x+1) problem with rational numbers: number of steps to reach the end of the cycle starting with 1/(2n+1).

n	a(n)
0	0
1	2
2	3
3	6
4	5
5	7
6	4
7	17
8	8
9	31
10	10
11	76
12	24
13	8
14	5
15	35
16	28
17	17
18	16
19	11
20	27
21	13
22	22
23	44
24	72
25	54
26	90
27	15
28	16
29	38
30	6
31	35
32	39
33	113
34	86
35	99
36	92
37	33
38	53
39	63
40	13
41	54
42	170
43	79
44	56
45	71
46	41
47	107
48	23
49	11
50	96
51	67
52	30
53	158
54	87
55	9
56	40
57	49
58	22
59	116
60	62
61	60
62	7
63	54
64	71
65	44
66	67

[0, 2, 3, 6, 5, 7, 4, 17, 8, 31, 10, 76, 24, 8, 5, 35, 28, 17, 16, 11, 27, 13, 22, 44, 72, 54, 90, 15, 16, 38, 6, 35, 39, 113, 86, 99, 92, 33, 53, 63, 13, 54, 170, 79, 56, 71, 41, 107, 23, 11, 96, 67, 30, 158, 87, 9, 40, 49, 22, 116, 62, 60, 7, 54, 71, 44, 67]

cp's OEIS Frontend

A210468 Collatz (3x+1) problem with rational numbers: number of steps to reach the end of the cycle starting with 1/(2n+1).

Table of values

List of values

n	a(n)
0	0
1	2
2	3
3	6
4	5
5	7
6	4
7	17
8	8
9	31
10	10
11	76
12	24
13	8
14	5
15	35
16	28
17	17
18	16
19	11
20	27
21	13
22	22
23	44
24	72
25	54
26	90
27	15
28	16
29	38
30	6
31	35
32	39
33	113
34	86
35	99
36	92
37	33
38	53
39	63
40	13
41	54
42	170
43	79
44	56
45	71
46	41
47	107
48	23
49	11
50	96
51	67
52	30
53	158
54	87
55	9
56	40
57	49
58	22
59	116
60	62
61	60
62	7
63	54
64	71
65	44
66	67

n	a(n)
0	0
1	2
2	3
3	6
4	5
5	7
6	4
7	17
8	8
9	31
10	10
11	76
12	24
13	8
14	5
15	35
16	28
17	17
18	16
19	11
20	27
21	13
22	22
23	44
24	72
25	54
26	90
27	15
28	16
29	38
30	6
31	35
32	39
33	113
34	86
35	99
36	92
37	33
38	53
39	63
40	13
41	54
42	170
43	79
44	56
45	71
46	41
47	107
48	23
49	11
50	96
51	67
52	30
53	158
54	87
55	9
56	40
57	49
58	22
59	116
60	62
61	60
62	7
63	54
64	71
65	44
66	67

n	a(n)
0	0
1	2
2	3
3	6
4	5
5	7
6	4
7	17
8	8
9	31
10	10
11	76
12	24
13	8
14	5
15	35
16	28
17	17
18	16
19	11
20	27
21	13
22	22
23	44
24	72
25	54
26	90
27	15
28	16
29	38
30	6
31	35
32	39
33	113
34	86
35	99
36	92
37	33
38	53
39	63
40	13
41	54
42	170
43	79
44	56
45	71
46	41
47	107
48	23
49	11
50	96
51	67
52	30
53	158
54	87
55	9
56	40
57	49
58	22
59	116
60	62
61	60
62	7
63	54
64	71
65	44
66	67