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 | 24 |
| 2 | -482 |
| 3 | -62352 |
| 4 | 33420 |
| 5 | 264675744 |
| 6 | 6175426056 |
| 7 | -1531951397568 |
| 8 | -82502038912368 |
| 9 | 10986387695118720 |
| 10 | 1049257719206417376 |
| 11 | -91053796553402040576 |
| 12 | -14396552453405934395712 |
| 13 | 810501742160249881655808 |
| 14 | 217462224255991218838362240 |
| 15 | -6786058422733831994965134336 |