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) |
|---|---|
| 1 | -744 |
| 2 | 80256 |
| 3 | -12288744 |
| 4 | 2126816256 |
| 5 | -392642298600 |
| 6 | 75506620496256 |
| 7 | -14935073808384744 |
| 8 | 3015675387953504256 |
| 9 | -618587635244888064744 |
| 10 | 128473308888136855075200 |
| 11 | -26951900214112779571200744 |