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 | 0 |
| 1 | 11 |
| 2 | 149 |
| 3 | 1156 |
| 4 | 2538 |
| 5 | 22925 |
| 6 | 163284 |
| 7 | 2116076 |
| 8 | 9321378 |
| 9 | 31622764 |