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 | 3 |
| 4 | 4 |
| 5 | 33 |
| 6 | 39 |
| 7 | 99 |
| 8 | 3237 |
| 9 | 9711 |
| 10 | 2069301 |
| 11 | 6207903 |
| 12 | 45502509 |
| 13 | 24091595067 |