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 | 8448 |
| 3 | 114048 |
| 4 | 1504656 |
| 5 | 18852912 |
| 6 | 231730344 |
| 7 | 2799406656 |
| 8 | 33382885464 |
| 9 | 393837138576 |
| 10 | 4605236160408 |
| 11 | 53449814746368 |
| 12 | 616434849399384 |
| 13 | 7070720929863408 |
| 14 | 80721453100802904 |
| 15 | 917737124914636128 |