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 | -17 |
| 2 | -288 |
| 3 | -5102 |
| 4 | -107315 |
| 5 | -2429223 |
| 6 | -64002818 |
| 7 | -2057205252 |
| 8 | -69940351581 |
| 9 | -2788890538777 |
| 10 | -122099137635118 |
| 11 | -5580021752377242 |
| 12 | -276932659619923555 |
| 13 | -15388458479166668283 |
| 14 | -946625238259888348698 |
| 15 | -60082571176666116692888 |
| 16 | -4171440414742758122621945 |