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 | 1 |
| 1 | 9 |
| 2 | 99 |
| 3 | 1569 |
| 4 | 34344 |
| 5 | 980487 |
| 6 | 34930455 |
| 7 | 1502349459 |
| 8 | 76058669082 |
| 9 | 4443563603890 |
| 10 | 294878418586620 |
| 11 | 21942670402467153 |
| 12 | 1811533845177895161 |
| 13 | 164451065361854357011 |
| 14 | 16291788187615516225925 |