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 | 0 |
| 2 | 1 |
| 3 | 16 |
| 4 | 169 |
| 5 | 1600 |
| 6 | 14641 |
| 7 | 132496 |
| 8 | 1194649 |
| 9 | 10758400 |
| 10 | 96845281 |
| 11 | 871666576 |
| 12 | 7845176329 |
| 13 | 70607118400 |
| 14 | 635465659921 |
| 15 | 5719195722256 |
| 16 | 51472775849209 |
| 17 | 463255025689600 |
| 18 | 4169295360346561 |
| 19 | 37523658630539536 |
| 20 | 337712928837117289 |
| 21 | 3039416363020840000 |
| 22 | 27354747277647913201 |
| 23 | 246192725530212278416 |