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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.

A072480 Shadow transform of factorials A000142.

Table of values

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

List of values

[0, 1, 0, 0, 0, 0, 3, 0, 4, 3, 5, 0, 8, 0, 7, 10, 10, 0, 12, 0, 15, 14, 11, 0, 20, 15, 13, 18, 21, 0, 25, 0, 24, 22, 17, 28, 30, 0, 19, 26, 35, 0, 35, 0, 33, 39, 23, 0, 42, 35, 40, 34, 39, 0, 45, 44, 49, 38, 29, 0, 55, 0, 31, 56, 56, 52, 55, 0, 51, 46, 63, 0, 66, 0, 37, 65, 57, 66, 65]

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