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.

A375094 a(n) is the least number not occurring in a Collatz trajectory of n steps.

Table of values

n a(n)
0 2
1 3
2 3
3 3
4 3
5 3
6 3
7 6
8 7
9 7
10 7
11 7
12 7
13 7
14 7
15 7
16 9
17 9
18 9
19 18
20 25
21 25
22 25
23 27
24 27
25 27
26 27
27 27
28 27
29 27
30 27
31 27
32 27
33 27
34 27
35 27
36 27
37 27
38 27
39 27
40 27
41 27
42 27
43 27
44 27
45 27
46 27
47 27
48 27
49 27
50 27
51 27
52 27
53 27
54 27
55 27
56 27
57 27
58 27
59 27
60 27
61 27
62 27
63 27
64 27
65 27
66 27
67 27
68 27
69 27
70 27

List of values

[2, 3, 3, 3, 3, 3, 3, 6, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 18, 25, 25, 25, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27]

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

Content is available under The OEIS End-User License Agreement.