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 | 26 |
| 2 | -782 |
| 3 | -96148 |
| 4 | 920620 |
| 5 | 584671256 |
| 6 | 8490132856 |
| 7 | -4893960693232 |
| 8 | -213893273952368 |
| 9 | 51521932403096480 |
| 10 | 4146277783283481376 |
| 11 | -643386552071776162624 |
| 12 | -83226053442166654536512 |
| 13 | 9092813725551462723320192 |
| 14 | 1813879773807164800891373440 |