A060411 - cp's OEIS frontend

A060411 In the '3x+1' problem, take the sequence of starting values which set new records for the highest point of the trajectory before reaching 1 (A006884); sequence gives iterate where maximal value is reached in the trajectory with that start.

n	a(n)
1	0
2	2
3	3
4	4
5	45
6	8
7	31
8	14
9	48
10	28
11	49
12	33
13	26
14	50
15	35
16	43
17	67
18	39
19	69
20	39
21	35
22	124
23	83
24	37
25	132
26	46
27	81
28	75
29	83
30	118
31	68
32	42
33	72
34	97
35	98
36	75
37	92
38	199
39	109
40	92
41	92
42	160
43	91
44	197
45	119
46	113
47	109
48	124
49	176
50	217
51	234
52	276
53	172
54	164
55	233
56	101
57	109
58	158
59	157

[0, 2, 3, 4, 45, 8, 31, 14, 48, 28, 49, 33, 26, 50, 35, 43, 67, 39, 69, 39, 35, 124, 83, 37, 132, 46, 81, 75, 83, 118, 68, 42, 72, 97, 98, 75, 92, 199, 109, 92, 92, 160, 91, 197, 119, 113, 109, 124, 176, 217, 234, 276, 172, 164, 233, 101, 109, 158, 157]

cp's OEIS Frontend

A060411 In the '3x+1' problem, take the sequence of starting values which set new records for the highest point of the trajectory before reaching 1 (A006884); sequence gives iterate where maximal value is reached in the trajectory with that start.

Table of values

List of values

n	a(n)
1	0
2	2
3	3
4	4
5	45
6	8
7	31
8	14
9	48
10	28
11	49
12	33
13	26
14	50
15	35
16	43
17	67
18	39
19	69
20	39
21	35
22	124
23	83
24	37
25	132
26	46
27	81
28	75
29	83
30	118
31	68
32	42
33	72
34	97
35	98
36	75
37	92
38	199
39	109
40	92
41	92
42	160
43	91
44	197
45	119
46	113
47	109
48	124
49	176
50	217
51	234
52	276
53	172
54	164
55	233
56	101
57	109
58	158
59	157

n	a(n)
1	0
2	2
3	3
4	4
5	45
6	8
7	31
8	14
9	48
10	28
11	49
12	33
13	26
14	50
15	35
16	43
17	67
18	39
19	69
20	39
21	35
22	124
23	83
24	37
25	132
26	46
27	81
28	75
29	83
30	118
31	68
32	42
33	72
34	97
35	98
36	75
37	92
38	199
39	109
40	92
41	92
42	160
43	91
44	197
45	119
46	113
47	109
48	124
49	176
50	217
51	234
52	276
53	172
54	164
55	233
56	101
57	109
58	158
59	157

n	a(n)
1	0
2	2
3	3
4	4
5	45
6	8
7	31
8	14
9	48
10	28
11	49
12	33
13	26
14	50
15	35
16	43
17	67
18	39
19	69
20	39
21	35
22	124
23	83
24	37
25	132
26	46
27	81
28	75
29	83
30	118
31	68
32	42
33	72
34	97
35	98
36	75
37	92
38	199
39	109
40	92
41	92
42	160
43	91
44	197
45	119
46	113
47	109
48	124
49	176
50	217
51	234
52	276
53	172
54	164
55	233
56	101
57	109
58	158
59	157