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) |
|---|---|
| 2 | 2 |
| 3 | 11 |
| 4 | 75 |
| 5 | 978 |
| 6 | 8350 |
| 7 | 160773 |
| 8 | 2217404 |
| 9 | 45623244 |
| 10 | 1093265784 |
| 11 | 37206483195 |
| 12 | 1587937206284 |
| 13 | 109746121381518 |
| 14 | 2697545063614180 |
| 15 | 64810523515743579 |
| 16 | 21538286780426129155 |