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 | 2 |
| 2 | 12 |
| 3 | 84 |
| 4 | 612 |
| 5 | 4532 |
| 6 | 33762 |
| 7 | 252106 |
| 8 | 1884120 |
| 9 | 14084674 |
| 10 | 105295512 |
| 11 | 787178752 |