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 | 31 |
| 2 | 98 |
| 3 | 354 |
| 4 | 1780 |
| 5 | 12008 |
| 6 | 157694 |
| 7 | 2808560 |
| 8 | 115232300 |
| 9 | 6691316378 |