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 | 8 |
| 3 | 26 |
| 4 | 53 |
| 5 | 3087 |
| 6 | 6173 |
| 7 | 8091 |
| 8 | 12330 |
| 9 | 18358 |
| 10 | 42898 |
| 11 | 294847 |
| 12 | 27382381 |
| 13 | 49290155 |
| 14 | 426131190 |
| 15 | 1350661780 |
| 16 | 3161620702 |
| 17 | 4461944219 |
| 18 | 17625479383 |
| 19 | 40766706170 |
| 20 | 61554358125 |
| 21 | 270930998357 |