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 | 0 |
| 2 | 16 |
| 3 | 94 |
| 4 | 654 |
| 5 | 4863 |
| 6 | 38243 |
| 7 | 313705 |
| 8 | 2658846 |
| 9 | 23073712 |
| 10 | 203859889 |
| 11 | 1826368510 |
| 12 | 16544195786 |
| 13 | 151222451513 |
| 14 | 1392635179004 |
| 15 | 12906366376283 |
| 16 | 120260052661235 |