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 | -96 |
| 2 | -6912 |
| 3 | -5410944 |
| 4 | -1537640448 |
| 5 | -753077521728 |
| 6 | -307254291047424 |
| 7 | -143134552425743616 |
| 8 | -65142005576276164608 |
| 9 | -30798673631132393592288 |
| 10 | -14628259811568672073824768 |
| 11 | -7054762801208507859522653568 |