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 | 99 |
| 3 | 4954 |
| 4 | 363850 |
| 5 | 25964546 |
| 6 | 2006263350 |
| 7 | 159927435847 |
| 8 | 13175135914848 |
| 9 | 1111064939631727 |
| 10 | 95607791613443343 |
| 11 | 8362857163936394397 |