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 | 2 |
| 2 | 11 |
| 3 | 39 |
| 4 | 169 |
| 5 | 534 |
| 6 | 1612 |
| 7 | 3894 |
| 8 | 8771 |
| 9 | 16307 |
| 10 | 29391 |
| 11 | 43291 |
| 12 | 69429 |
| 13 | 83571 |