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.

A221473 Irregular table of odd numbers whose n-th row has numbers taking n iterations of the Collatz (3x+1) function to reach 1.

Table of values

n a(n)
0 1
1 5
2 3
3 21
4 13
5 85
6 53
7 341
8 17
9 113
10 35
11 213
12 227
13 1365
14 11
15 69
16 75
17 453
18 23
19 141
20 151
21 853
22 909
23 5461
24 7
25 45
26 277
27 301
28 1813
29 15
30 93
31 565
32 605
33 3413
34 3637
35 21845
36 29
37 181
38 201
39 1109
40 1137
41 1205
42 7253
43 7281
44 9
45 61
46 369
47 373
48 401
49 403
50 2261
51 2275
52 2417

List of values

[1, 5, 3, 21, 13, 85, 53, 341, 17, 113, 35, 213, 227, 1365, 11, 69, 75, 453, 23, 141, 151, 853, 909, 5461, 7, 45, 277, 301, 1813, 15, 93, 565, 605, 3413, 3637, 21845, 29, 181, 201, 1109, 1137, 1205, 7253, 7281, 9, 61, 369, 373, 401, 403, 2261, 2275, 2417]