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 | 4 |
| 3 | 324 |
| 4 | 38656 |
| 5 | 6812500 |
| 6 | 1691793216 |
| 7 | 566933589544 |
| 8 | 247467140448256 |
| 9 | 136744348012840296 |
| 10 | 93452709250000000000 |
| 11 | 77479910616937022101996 |
| 12 | 76677271817228569527975936 |
| 13 | 89338843947334074736463717884 |
| 14 | 121104748419604219251183463776256 |
| 15 | 189040371972603446582336425781250000 |
| 16 | 336742459165125951045187297509382291456 |