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 | 1488 |
| 2 | 947304 |
| 3 | 335950912 |
| 4 | 72474624276 |
| 5 | 9790124955552 |
| 6 | 833107628914688 |
| 7 | 45630592148400000 |
| 8 | 1754954450906393538 |
| 9 | 51062104386000089648 |
| 10 | 1186840963302480101376 |
| 11 | 22924552119951492244800 |
| 12 | 378933532779364657975000 |