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 | 9 |
| 1 | 791 |
| 2 | 65601 |
| 3 | 5444135 |
| 4 | 451797561 |
| 5 | 37493753471 |
| 6 | 3111529740489 |
| 7 | 258219474707159 |
| 8 | 21429104870953665 |
| 9 | 1778357484814447079 |
| 10 | 147582242134728153849 |
| 11 | 12247547739697622322431 |