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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.

A258649 Ninth arithmetic derivative of n.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 4
5 0
6 0
7 0
8 3424
9 0
10 0
11 0
12 8592
13 0
14 0
15 1520
16 20096
17 0
18 0
19 0
20 8144
21 0
22 0
23 0
24 16304
25 0
26 752
27 27
28 20096
29 0
30 0
31 0
32 70464
33 0
34 0
35 3424
36 22288
37 0
38 0
39 8592
40 7744
41 0
42 0
43 0
44 32624
45 3424
46 0
47 0
48 65264
49 0
50 1520
51 3120
52 22288
53 0
54 23112
55 8592
56 47872
57 0
58 0
59 0
60 47872

List of values

[0, 0, 0, 0, 4, 0, 0, 0, 3424, 0, 0, 0, 8592, 0, 0, 1520, 20096, 0, 0, 0, 8144, 0, 0, 0, 16304, 0, 752, 27, 20096, 0, 0, 0, 70464, 0, 0, 3424, 22288, 0, 0, 8592, 7744, 0, 0, 0, 32624, 3424, 0, 0, 65264, 0, 1520, 3120, 22288, 0, 23112, 8592, 47872, 0, 0, 0, 47872]

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

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