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 | 0 |
1 | 59049 |
2 | 9509900499 |
3 | 995009990004999 |
4 | 99950009999000049999 |
5 | 9999500009999900000499999 |
6 | 999995000009999990000004999999 |
7 | 99999950000009999999000000049999999 |
8 | 9999999500000009999999900000000499999999 |
9 | 999999995000000009999999990000000004999999999 |
10 | 99999999950000000009999999999000000000049999999999 |