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 | 50 |
| 2 | 1236 |
| 3 | 89618 |
| 4 | 11684688 |
| 5 | 6112320620 |
| 6 | 4871877392202 |
| 7 | 17264863350746654 |
| 8 | 83050637417670542044 |