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 | 2 |
| 2 | 8 |
| 3 | 44 |
| 4 | 436 |
| 5 | 7176 |
| 6 | 222368 |
| 7 | 12376880 |
| 8 | 1302871456 |
| 9 | 254079924896 |
| 10 | 94287450368768 |
| 11 | 65986000800656832 |
| 12 | 88430997899765949952 |
| 13 | 226039101814259861321856 |
| 14 | 1112311767839787173832758784 |