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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.

A219652 Number of steps to reach 0 starting with n and using the iterated process: x -> x - (sum of digits in factorial expansion of x).

Table of values

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

List of values

[0, 1, 2, 2, 3, 3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19]

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