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 | 1 |
| 2 | 5 |
| 3 | 691 |
| 4 | 3617 |
| 5 | 43867 |
| 6 | 174611 |
| 7 | 854513 |
| 8 | 236364091 |
| 9 | 23749461029 |
| 10 | 8615841276005 |
| 11 | 26315271553053477373 |
| 12 | 261082718496449122051 |
| 13 | 1520097643918070802691 |
| 14 | 27833269579301024235023 |
| 15 | 596451111593912163277961 |
| 16 | 5609403368997817686249127547 |