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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 16 |
| 5 | 54 |
| 6 | 212 |
| 7 | 834 |
| 8 | 3558 |
| 9 | 15394 |
| 10 | 69512 |
| 11 | 313107 |
| 12 | 1474095 |
| 13 | 6877031 |
| 14 | 32877196 |