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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.

A227191 a(n) = n minus (product of nonzero digits in factorial base representation of n).

Table of values

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

List of values

[0, 1, 2, 2, 3, 5, 6, 7, 8, 8, 9, 10, 11, 12, 13, 12, 13, 15, 16, 17, 18, 16, 17, 23, 24, 25, 26, 26, 27, 29, 30, 31, 32, 32, 33, 34, 35, 36, 37, 36, 37, 39, 40, 41, 42, 40, 41, 46, 47, 48, 49, 48, 49, 52, 53, 54, 55, 54, 55, 56, 57, 58, 59, 56, 57, 60, 61, 62]

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

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