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) |
|---|---|
| 2 | 5 |
| 3 | 51 |
| 4 | 585 |
| 5 | 95325 |
| 6 | 1290555 |
| 7 | 252645135 |
| 8 | 3616814565 |
| 9 | 764877654105 |
| 10 | 2484744621997515 |
| 11 | 37191016277640225 |
| 12 | 127631526564044465235 |
| 13 | 29485995600356809139175 |
| 14 | 449832863112420158030205 |