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) |
|---|---|
| 3 | 1296 |
| 4 | 82944 |
| 5 | 9150625 |
| 6 | 1575296100 |
| 7 | 391476713761 |
| 8 | 132821015040000 |
| 9 | 59042071787233536 |
| 10 | 33317165538875522500 |
| 11 | 23276866101199344597601 |
| 12 | 19729668557004748392960000 |
| 13 | 19950922411933407541569256321 |
| 14 | 23731310247317631978185581240644 |