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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.

A261923 Number of steps to reach 0, starting at n, and iteration the map x -> A261922(x).

Table of values

n a(n)
0 0
1 1
2 2
3 1
4 2
5 2
6 3
7 1
8 2
9 2
10 2
11 3
12 3
13 3
14 3
15 1
16 2
17 2
18 2
19 3
20 2
21 2
22 3
23 3
24 3
25 3
26 3
27 3
28 3
29 3
30 3
31 1
32 2
33 2
34 2
35 3
36 2
37 2
38 3
39 3
40 2
41 2
42 2
43 3
44 2
45 3
46 3
47 3
48 3
49 3
50 3
51 3
52 2
53 3
54 3
55 3
56 3
57 3
58 3
59 3
60 3
61 3
62 3
63 1
64 2
65 2
66 2
67 3
68 2
69 2
70 3
71 3
72 2
73 2
74 2
75 4
76 3
77 2
78 3
79 3
80 2
81 2
82 2
83 4
84 2
85 2

List of values

[0, 1, 2, 1, 2, 2, 3, 1, 2, 2, 2, 3, 3, 3, 3, 1, 2, 2, 2, 3, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 2, 2, 2, 3, 2, 2, 3, 3, 2, 2, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 2, 2, 2, 3, 2, 2, 3, 3, 2, 2, 2, 4, 3, 2, 3, 3, 2, 2, 2, 4, 2, 2]

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