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 | 75 |
| 2 | 5625 |
| 3 | 327899 |
| 4 | 18584111 |
| 5 | 1058580304 |
| 6 | 60409681388 |
| 7 | 3444706587880 |
| 8 | 196394845077515 |
| 9 | 11195823351575374 |
| 10 | 638229931665914988 |
| 11 | 36382525031488738507 |
| 12 | 2073995028464244989213 |
| 13 | 118228412844652091729417 |