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 | 729 |
| 2 | 69984 |
| 3 | 1126072 |
| 4 | 8297747 |
| 5 | 42132769 |
| 6 | 174854516 |
| 7 | 644368221 |
| 8 | 2212959866 |
| 9 | 7296488462 |
| 10 | 23473954511 |
| 11 | 74124038709 |
| 12 | 229565868000 |
| 13 | 694675751863 |
| 14 | 2045339262040 |
| 15 | 5840640774160 |
| 16 | 16145608364197 |
| 17 | 43177424328109 |