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 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 36 |
| 5 | 625 |
| 6 | 8100 |
| 7 | 90601 |
| 8 | 933156 |
| 9 | 9150625 |
| 10 | 87048900 |
| 11 | 812307001 |
| 12 | 7486748676 |
| 13 | 68447640625 |
| 14 | 622473660900 |
| 15 | 5641104760201 |
| 16 | 51003678922596 |
| 17 | 460438253730625 |
| 18 | 4152386009780100 |
| 19 | 37422167780506201 |
| 20 | 337103845136750916 |
| 21 | 3035761307578140625 |
| 22 | 27332814735512302500 |