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 | 2 |
| 2 | 23 |
| 3 | 235 |
| 4 | 2357 |
| 5 | 23581 |
| 6 | 235823 |
| 7 | 2358247 |
| 8 | 23582489 |
| 9 | 235824913 |
| 10 | 2358249159 |
| 11 | 23582491621 |
| 12 | 235824916247 |
| 13 | 2358249162511 |
| 14 | 23582491625153 |
| 15 | 235824916251577 |
| 16 | 2358249162515823 |
| 17 | 23582491625158289 |