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 | 1 |
| 1 | 14 |
| 2 | 181 |
| 3 | 2339 |
| 4 | 30226 |
| 5 | 390599 |
| 6 | 5047561 |
| 7 | 65227694 |
| 8 | 842912461 |
| 9 | 10892634299 |
| 10 | 140761333426 |
| 11 | 1819004700239 |
| 12 | 23506299769681 |
| 13 | 303762892305614 |
| 14 | 3925411300203301 |
| 15 | 50726584010337299 |
| 16 | 655520180834181586 |
| 17 | 8471035766834023319 |
| 18 | 109467944788008121561 |