A378376 - cp's OEIS frontend

A378376 Smallest starting x which requires n steps to reach 1 under the map x -> 3x-1 if x odd, x -> 3x-1 or x/2 if x even.

n	a(n)
0	1
1	2
2	4
3	8
4	3
5	6
6	11
7	22
8	43
9	15
10	29
11	10
12	20
13	7
14	14
15	5
16	9
17	18
18	35
19	13
20	23
21	46
22	91
23	31
24	61
25	21
26	41
27	81
28	161
29	55
30	109
31	37
32	73
33	25
34	49
35	17
36	33
37	65
38	129
39	257
40	87
41	173
42	341
43	117
44	225
45	455
46	153
47	305
48	607
49	209
50	405
51	809
52	273
53	543
54	185
55	369
56	721
57	1433
58	481
59	961
60	321

[1, 2, 4, 8, 3, 6, 11, 22, 43, 15, 29, 10, 20, 7, 14, 5, 9, 18, 35, 13, 23, 46, 91, 31, 61, 21, 41, 81, 161, 55, 109, 37, 73, 25, 49, 17, 33, 65, 129, 257, 87, 173, 341, 117, 225, 455, 153, 305, 607, 209, 405, 809, 273, 543, 185, 369, 721, 1433, 481, 961, 321]

cp's OEIS Frontend

A378376 Smallest starting x which requires n steps to reach 1 under the map x -> 3x-1 if x odd, x -> 3x-1 or x/2 if x even.

Table of values

List of values