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 | 4 |
| 2 | 35 |
| 3 | 340 |
| 4 | 3484 |
| 5 | 36784 |
| 6 | 395922 |
| 7 | 4319172 |
| 8 | 47588100 |
| 9 | 528328108 |
| 10 | 5901043161 |
| 11 | 66233871972 |
| 12 | 746434573208 |