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 | 24 |
| 3 | 245 |
| 4 | 2484 |
| 5 | 24967 |
| 6 | 249934 |
| 7 | 2499755 |
| 8 | 24999435 |
| 9 | 249997579 |
| 10 | 2499995131 |
| 11 | 24999983109 |
| 12 | 249999976990 |