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 | 7776 |
| 1 | 537824 |
| 2 | 5153632 |
| 3 | 24300000 |
| 4 | 79235168 |
| 5 | 205962976 |
| 6 | 459165024 |
| 7 | 916132832 |
| 8 | 1680700000 |
| 9 | 2887174368 |
| 10 | 4704270176 |
| 11 | 7339040224 |
| 12 | 11040808032 |
| 13 | 16105100000 |
| 14 | 22877577568 |
| 15 | 31757969376 |
| 16 | 43204003424 |
| 17 | 57735339232 |
| 18 | 75937500000 |
| 19 | 98465804768 |
| 20 | 126049300576 |
| 21 | 159494694624 |
| 22 | 199690286432 |