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.

A212653 Number of steps to reach 1 in the Collatz (3x+1) problem starting with 3^n + 1.

Table of values

n a(n)
0 1
1 2
2 6
3 18
4 110
5 21
6 95
7 32
8 75
9 74
10 42
11 134
12 133
13 132
14 131
15 143
16 204
17 128
18 189
19 139
20 94
21 93
22 260
23 427
24 90
25 257
26 393
27 330
28 254
29 253
30 389
31 388
32 387
33 461
34 460
35 459
36 458
37 457
38 456
39 455
40 454
41 453
42 452
43 500
44 499
45 449
46 497
47 496
48 751
49 494
50 493
51 492
52 747
53 490
54 745

List of values

[1, 2, 6, 18, 110, 21, 95, 32, 75, 74, 42, 134, 133, 132, 131, 143, 204, 128, 189, 139, 94, 93, 260, 427, 90, 257, 393, 330, 254, 253, 389, 388, 387, 461, 460, 459, 458, 457, 456, 455, 454, 453, 452, 500, 499, 449, 497, 496, 751, 494, 493, 492, 747, 490, 745]