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 | 8 |
| 2 | -1967 |
| 3 | -176418 |
| 4 | -4187743 |
| 5 | -48769076 |
| 6 | -362265615 |
| 7 | -1972543774 |
| 8 | -8546887871 |
| 9 | -30993639120 |
| 10 | -96513215599 |
| 11 | -253930611002 |
| 12 | -460578834207 |
| 13 | 749705434292 |
| 14 | 18827227285297 |
| 15 | 197241376235274 |
| 16 | 1835428002807425 |