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 | 0 |
| 2 | 1 |
| 3 | 14 |
| 4 | 171 |
| 5 | 2344 |
| 6 | 37325 |
| 7 | 686286 |
| 8 | 14380471 |
| 9 | 338992928 |
| 10 | 8888888889 |
| 11 | 256780503550 |
| 12 | 8105545862051 |
| 13 | 277635514376232 |
| 14 | 10257237069745861 |
| 15 | 406615755353655134 |
| 16 | 17216961135462248175 |
| 17 | 775537745518440716416 |
| 18 | 37031913482632035365105 |