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 | 3 |
| 3 | 8 |
| 4 | 38 |
| 5 | 223 |
| 6 | 2412 |
| 7 | 26400 |
| 8 | 371328 |
| 9 | 5636096 |
| 10 | 92242944 |
| 11 | 2278149120 |
| 12 | 57145347072 |
| 13 | 1607327566848 |
| 14 | 49562666560512 |