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.

A065999 Sum of digits of 9^n.

Table of values

n a(n)
0 1
1 9
2 9
3 18
4 18
5 27
6 18
7 45
8 27
9 45
10 45
11 45
12 54
13 63
14 72
15 63
16 63
17 99
18 81
19 90
20 90
21 90
22 90
23 108
24 117
25 144
26 117
27 108
28 90
29 126
30 99
31 153
32 144
33 117
34 153
35 144
36 162
37 171
38 153
39 153
40 153
41 198
42 162
43 171
44 198
45 216
46 171
47 198
48 198
49 225
50 153
51 252
52 216
53 234
54 207

List of values

[1, 9, 9, 18, 18, 27, 18, 45, 27, 45, 45, 45, 54, 63, 72, 63, 63, 99, 81, 90, 90, 90, 90, 108, 117, 144, 117, 108, 90, 126, 99, 153, 144, 117, 153, 144, 162, 171, 153, 153, 153, 198, 162, 171, 198, 216, 171, 198, 198, 225, 153, 252, 216, 234, 207]