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 | 4 |
| 3 | 25 |
| 4 | 196 |
| 5 | 2304 |
| 6 | 29929 |
| 7 | 509796 |
| 8 | 9696996 |
| 9 | 223084096 |
| 10 | 6469628356 |
| 11 | 200559769921 |
| 12 | 7420737154609 |
| 13 | 304250260158441 |
| 14 | 13082761295250201 |
| 15 | 614889781233144561 |
| 16 | 32589158470911505225 |
| 17 | 1922760350143213168900 |