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 | 9 |
| 2 | 85 |
| 3 | 708 |
| 4 | 6635 |
| 5 | 60640 |
| 6 | 535534 |
| 7 | 4737129 |
| 8 | 43297195 |
| 9 | 392641522 |
| 10 | 3536880527 |
| 11 | 31067514571 |
| 12 | 282635824867 |