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) |
|---|---|
| 3 | 119 |
| 4 | 1654 |
| 5 | 5784 |
| 6 | -57421 |
| 7 | -974120 |
| 8 | -8191112 |
| 9 | -51264392 |
| 10 | -266367722 |
| 11 | -1204269647 |
| 12 | -4832097594 |
| 13 | -17187443308 |
| 14 | -52433219783 |
| 15 | -120342975558 |
| 16 | -58288009528 |
| 17 | 1603731045044 |
| 18 | 13940518848356 |