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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.

A257670 Minimum term in the sigma(x) -> x subtree whose root is n.

Table of values

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

List of values

[1, 2, 2, 2, 5, 5, 2, 2, 9, 10, 11, 5, 9, 9, 2, 16, 17, 10, 19, 19, 21, 22, 23, 2, 25, 26, 27, 5, 29, 29, 16, 16, 33, 34, 35, 22, 37, 37, 10, 27, 41, 19, 43, 43, 45, 46, 47, 33, 49, 50, 51, 52, 53, 34, 55, 5, 49, 58, 59, 2, 61, 61, 16, 64, 65, 66, 67, 67, 69]

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

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