cp's OEIS Frontend

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.

A007471 Sum of digits of n a(n) is n ( = A003634/n), or 0 if no such number exists.

Table of values

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

List of values

[1, 9, 9, 3, 9, 9, 3, 9, 9, 1, 18, 9, 9, 9, 9, 9, 9, 9, 6, 9, 18, 6, 9, 9, 6, 9, 9, 4, 9, 9, 12, 18, 18, 3, 9, 9, 3, 9, 9, 3, 18, 18, 12, 18, 9, 5, 9, 9, 9, 9, 18, 6, 18, 18, 2, 9, 9, 9, 9, 9, 12, 0, 0, 5, 0, 18, 3, 9, 9, 3, 18, 18, 7, 27, 0, 12, 18]