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 | 0 |
| 2 | -7 |
| 3 | -84 |
| 4 | -855 |
| 5 | -7986 |
| 6 | -64455 |
| 7 | -287568 |
| 8 | 5666105 |
| 9 | 276309378 |
| 10 | 8888888889 |
| 11 | 274200559500 |
| 12 | 8804989337145 |
| 13 | 301763995481142 |
| 14 | 11100895714446905 |
| 15 | 437782779269748264 |
| 16 | 18445632962598440505 |
| 17 | 827229150775225653066 |