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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 34 |
| 4 | 386 |
| 5 | 578 |
| 6 | 6562 |
| 7 | 9826 |
| 8 | 74498 |
| 9 | 111554 |
| 10 | 167042 |
| 11 | 1100546 |
| 12 | 1192354 |
| 13 | 1266466 |
| 14 | 1896418 |
| 15 | 2839714 |
| 16 | 14378114 |
| 17 | 18709282 |
| 18 | 20270018 |
| 19 | 21529922 |
| 20 | 32239106 |
| 21 | 35759426 |
| 22 | 48275138 |
| 23 | 191812802 |
| 24 | 212405378 |
| 25 | 230124322 |
| 26 | 244427938 |
| 27 | 318057794 |
| 28 | 344590306 |