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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.

A220237 Triangle read by rows: sorted terms of Collatz trajectories.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 3
7 4
8 5
9 8
10 10
11 16
12 1
13 2
14 4
15 1
16 2
17 4
18 5
19 8
20 16
21 1
22 2
23 3
24 4
25 5
26 6
27 8
28 10
29 16
30 1
31 2
32 4
33 5
34 7
35 8
36 10
37 11
38 13
39 16
40 17
41 20
42 22
43 26
44 34
45 40
46 52
47 1
48 2
49 4
50 8
51 1
52 2
53 4
54 5
55 7
56 8
57 9
58 10
59 11
60 13
61 14
62 16
63 17
64 20
65 22
66 26
67 28
68 34
69 40
70 52
71 1
72 2
73 4
74 5
75 8
76 10
77 16

List of values

[1, 1, 2, 1, 2, 3, 4, 5, 8, 10, 16, 1, 2, 4, 1, 2, 4, 5, 8, 16, 1, 2, 3, 4, 5, 6, 8, 10, 16, 1, 2, 4, 5, 7, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 52, 1, 2, 4, 8, 1, 2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 16, 17, 20, 22, 26, 28, 34, 40, 52, 1, 2, 4, 5, 8, 10, 16]

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

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