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 | 16 |
| 2 | -1426 |
| 3 | -76640 |
| 4 | 5969356 |
| 5 | 611143616 |
| 6 | -40423986104 |
| 7 | -6814445150336 |
| 8 | 366920889983120 |
| 9 | 97565908182651136 |
| 10 | -3993393901642052384 |
| 11 | -1704952878058464945664 |
| 12 | 46606527919245814078144 |
| 13 | 35158473337439989488532480 |
| 14 | -456562766083189138816177024 |