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.

A222292 Least number whose Collatz 3x+1 trajectory contains a number >= 2^n.

Table of values

n a(n)
0 1
1 2
2 3
3 3
4 3
5 7
6 15
7 15
8 27
9 27
10 27
11 27
12 27
13 27
14 447
15 447
16 703
17 703
18 1819
19 1819
20 1819
21 4255
22 4255
23 9663
24 9663
25 20895
26 26623
27 60975
28 60975
29 60975
30 77671
31 113383
32 159487
33 159487
34 159487
35 665215
36 1042431
37 1212415
38 2684647
39 3041127
40 4637979
41 5656191
42 6416623

List of values

[1, 2, 3, 3, 3, 7, 15, 15, 27, 27, 27, 27, 27, 27, 447, 447, 703, 703, 1819, 1819, 1819, 4255, 4255, 9663, 9663, 20895, 26623, 60975, 60975, 60975, 77671, 113383, 159487, 159487, 159487, 665215, 1042431, 1212415, 2684647, 3041127, 4637979, 5656191, 6416623]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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