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 | 97 |
| 3 | 13753 |
| 4 | 1712845 |
| 5 | 207009649 |
| 6 | 24875000437 |
| 7 | 2985789977353 |
| 8 | 358313458071085 |
| 9 | 42998059096839649 |
| 10 | 5159777705044971877 |
| 11 | 619173578774772949753 |
| 12 | 74300835546376264277725 |