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 | 56 |
| 2 | 17955 |
| 3 | 46023264 |
| 4 | 788445558369 |
| 5 | 93045123748178784 |
| 6 | 76659102616653908421840 |
| 7 | 441950769546142349090502037440 |
| 8 | 17834458877897982857449854404616853056 |