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.
n | a(n) |
---|---|
0 | 19 |
1 | 919 |
2 | 90109 |
3 | 9001009 |
4 | 900010009 |
5 | 90000100009 |
6 | 9000001000009 |
7 | 900000010000009 |
8 | 90000000100000009 |
9 | 9000000001000000009 |
10 | 900000000010000000009 |
11 | 90000000000100000000009 |
12 | 9000000000001000000000009 |
13 | 900000000000010000000000009 |
14 | 90000000000000100000000000009 |