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 | 432 |
| 2 | 18336 |
| 3 | 1031344 |
| 4 | 52394312 |
| 5 | 2563440512 |
| 6 | 121792778352 |
| 7 | 5665397992608 |
| 8 | 259306140235672 |
| 9 | 11718368891185840 |
| 10 | 524154208020159720 |
| 11 | 23247356088445416368 |
| 12 | 1023776741213223461792 |
| 13 | 44814164049516781057936 |