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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.

A050218 Sums of digits of Smith numbers A006753.

Table of values

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

List of values

[4, 4, 9, 13, 13, 13, 4, 13, 4, 13, 13, 13, 13, 13, 18, 13, 13, 15, 13, 15, 13, 13, 13, 13, 18, 21, 15, 13, 15, 15, 18, 15, 15, 18, 15, 13, 17, 18, 15, 22, 15, 15, 15, 22, 13, 15, 13, 22, 22, 15, 4, 13, 13, 13, 13, 15, 17, 18, 13, 15, 15, 13, 13, 22, 17, 18, 21, 22, 13, 15]

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