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 | 48 |
| 2 | 382 |
| 3 | -166176 |
| 4 | -10179060 |
| 5 | 788966208 |
| 6 | 135691144584 |
| 7 | -2585183370624 |
| 8 | -1949677461023088 |
| 9 | -53834738622393600 |
| 10 | 31141453266902483424 |
| 11 | 2529493433133724196352 |
| 12 | -536976920178433543125312 |
| 13 | -84115128710361024934677504 |
| 14 | 9379379149481011311664525440 |