cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A193688 Number of steps to reach 1 in Collatz (3x+1) problem starting with 2^n - 1.

Table of values

n a(n)
1 0
2 7
3 16
4 17
5 106
6 107
7 46
8 47
9 61
10 62
11 156
12 157
13 158
14 159
15 129
16 130
17 224
18 225
19 177
20 178
21 303
22 304
23 473
24 474
25 444
26 445
27 384
28 385
29 448
30 449
31 450
32 451
33 527
34 528
35 529
36 530
37 531
38 532
39 533
40 534
41 535
42 536
43 586
44 587
45 588
46 589
47 590
48 591
49 592
50 593
51 594
52 595
53 852

List of values

[0, 7, 16, 17, 106, 107, 46, 47, 61, 62, 156, 157, 158, 159, 129, 130, 224, 225, 177, 178, 303, 304, 473, 474, 444, 445, 384, 385, 448, 449, 450, 451, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 852]