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 | 32 |
| 2 | 1351 |
| 3 | 62501 |
| 4 | 2976416 |
| 5 | 142999897 |
| 6 | 6888568813 |
| 7 | 332097693792 |
| 8 | 16014193762579 |
| 9 | 772279980131297 |
| 10 | 37243762479698928 |
| 11 | 1796118644459454733 |
| 12 | 86619824190256627593 |
| 13 | 4177339899819872607008 |
| 14 | 201457018240598757372431 |
| 15 | 9715496740529686006497709 |
| 16 | 468541027322402116068858304 |