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 | 1 |
| 2 | 6 |
| 3 | 17 |
| 4 | 128 |
| 5 | 866 |
| 6 | 7179 |
| 7 | 60778 |
| 8 | 541494 |
| 9 | 4926728 |
| 10 | 45758958 |
| 11 | 431242307 |
| 12 | 4115192739 |