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) |
|---|---|
| 0 | 1 |
| 1 | 29 |
| 2 | 812 |
| 3 | 22736 |
| 4 | 636608 |
| 5 | 17825024 |
| 6 | 499100672 |
| 7 | 13974818816 |
| 8 | 391294926848 |
| 9 | 10956257951744 |
| 10 | 306775222648832 |
| 11 | 8589706234167296 |
| 12 | 240511774556683882 |
| 13 | 6734329687587137328 |
| 14 | 188561231252439527286 |
| 15 | 5279714475068297862864 |