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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.

A350082 Smallest odd number > n with n in its Collatz successors, or 0 if no such odd number exists. a(1) = 1.

Table of values

n a(n)
1 1
2 3
3 0
4 5
5 7
6 0
7 9
8 9
9 0
10 11
11 19
12 0
13 17
14 37
15 0
16 17
17 19
18 0
19 25
20 23
21 0
22 25
23 27
24 0
25 33
26 29
27 0
28 37
29 33
30 0
31 41
32 75
33 0
34 37
35 41
36 0
37 43
38 39
39 0
40 41
41 109
42 0
43 57
44 51
45 0
46 47
47 55
48 0
49 57
50 133
51 0
52 57
53 55
54 0
55 73
56 57
57 0
58 59
59 123
60 0
61 63
62 109
63 0
64 75
65 115
66 0
67 89
68 181
69 0
70 71
71 73

List of values

[1, 3, 0, 5, 7, 0, 9, 9, 0, 11, 19, 0, 17, 37, 0, 17, 19, 0, 25, 23, 0, 25, 27, 0, 33, 29, 0, 37, 33, 0, 41, 75, 0, 37, 41, 0, 43, 39, 0, 41, 109, 0, 57, 51, 0, 47, 55, 0, 57, 133, 0, 57, 55, 0, 73, 57, 0, 59, 123, 0, 63, 109, 0, 75, 115, 0, 89, 181, 0, 71, 73]

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

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