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 | 243 |
| 2 | 11664 |
| 3 | 82700 |
| 4 | 345875 |
| 5 | 1258372 |
| 6 | 4420701 |
| 7 | 15312504 |
| 8 | 51743213 |
| 9 | 168153223 |
| 10 | 520664883 |
| 11 | 1530227559 |
| 12 | 4268724974 |
| 13 | 11327557052 |
| 14 | 28687337144 |
| 15 | 69591692782 |
| 16 | 162311418316 |
| 17 | 365262043261 |
| 18 | 795700321817 |
| 19 | 1682982694668 |
| 20 | 3465433571507 |