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 | -1032 |
| 2 | 48312 |
| 3 | 171162336 |
| 4 | -6444771144 |
| 5 | -10105554483504 |
| 6 | -1037089473751584 |
| 7 | -48959817978105408 |
| 8 | -1378102838778701640 |
| 9 | -26186640301645703016 |
| 10 | -364779940958775418032 |
| 11 | -3952291567255306906464 |
| 12 | -34798629548716507265568 |
| 13 | -257403564989318828310384 |