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 | 10 |
| 2 | 75 |
| 3 | 721 |
| 4 | 6637 |
| 5 | 60605 |
| 6 | 514809 |
| 7 | 4730382 |
| 8 | 43254591 |
| 9 | 392344689 |
| 10 | 3421561753 |
| 11 | 31049600245 |
| 12 | 282499317912 |