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) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 30 |
| 4 | 351 |
| 5 | 3690 |
| 6 | 38541 |
| 7 | 394398 |
| 8 | 3998411 |
| 9 | 40399778 |
| 10 | 407316676 |
| 11 | 4099892369 |
| 12 | 41217744252 |
| 13 | 414006129652 |
| 14 | 4155543234392 |