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.

A339769 Number of unique heights that are achieved by only one starting number in the Collatz (or '3x+1') problem when starting from numbers in the range [2^n, 2^(n+1)).

Table of values

n a(n)
0 1
1 2
2 4
3 4
4 5
5 6
6 10
7 12
8 9
9 7
10 4
11 9
12 13
13 11
14 7
15 6
16 8
17 10
18 13
19 14
20 10
21 15
22 14
23 21
24 8
25 7
26 13
27 21

List of values

[1, 2, 4, 4, 5, 6, 10, 12, 9, 7, 4, 9, 13, 11, 7, 6, 8, 10, 13, 14, 10, 15, 14, 21, 8, 7, 13, 21]