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) |
|---|---|
| 3 | 3 |
| 4 | 57 |
| 5 | 717 |
| 6 | 7845 |
| 7 | 81333 |
| 8 | 825237 |
| 9 | 8300757 |
| 10 | 83202645 |
| 11 | 832809813 |
| 12 | 8331237717 |
| 13 | 83324947797 |
| 14 | 833299785045 |
| 15 | 8333199127893 |
| 16 | 83332796486997 |
| 17 | 833331185898837 |
| 18 | 8333324743497045 |
| 19 | 83333298973791573 |
| 20 | 833333195894773077 |
| 21 | 8333332783578305877 |
| 22 | 83333331134311650645 |