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 | 121 |
| 3 | 11881 |
| 4 | 1164241 |
| 5 | 114083761 |
| 6 | 11179044361 |
| 7 | 1095432263641 |
| 8 | 107341182792481 |
| 9 | 10518340481399521 |
| 10 | 1030690025994360601 |
| 11 | 100997104206965939401 |
| 12 | 9896685522256667700721 |
| 13 | 969774184076946468731281 |