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 | 367 |
| 3 | 27859 |
| 4 | 1295803 |
| 5 | 5329242827 |
| 6 | 25198857127 |
| 7 | 11959712166949 |
| 8 | 11153239773419941 |
| 9 | 31326450596954510807 |
| 10 | 3737565567167418110609 |
| 11 | 2102602044094540855003573 |
| 12 | 189861334343507894443216783 |