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.

A213214 Number of steps to reach 1 in the Collatz (3x+1) problem starting with 3^n - 1.

Table of values

n a(n)
1 1
2 3
3 10
4 9
5 96
6 95
7 32
8 31
9 43
10 42
11 134
12 133
13 132
14 131
15 99
16 98
17 190
18 189
19 139
20 138
21 261
22 260
23 427
24 426
25 394
26 393
27 330
28 329
29 390
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
45 498
46 497
47 496
48 495
49 494
50 493
51 492
52 491
53 746
54 745
55 488

List of values

[1, 3, 10, 9, 96, 95, 32, 31, 43, 42, 134, 133, 132, 131, 99, 98, 190, 189, 139, 138, 261, 260, 427, 426, 394, 393, 330, 329, 390, 389, 388, 387, 461, 460, 459, 458, 457, 456, 455, 454, 453, 452, 500, 499, 498, 497, 496, 495, 494, 493, 492, 491, 746, 745, 488]