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 | 5 |
| 2 | 128 |
| 3 | 891 |
| 4 | 3584 |
| 5 | 10625 |
| 6 | 25920 |
| 7 | 55223 |
| 8 | 106496 |
| 9 | 190269 |
| 10 | 320000 |
| 11 | 512435 |
| 12 | 787968 |
| 13 | 1171001 |
| 14 | 1690304 |
| 15 | 2379375 |
| 16 | 3276800 |
| 17 | 4426613 |
| 18 | 5878656 |
| 19 | 7688939 |
| 20 | 9920000 |
| 21 | 12641265 |
| 22 | 15929408 |
| 23 | 19868711 |
| 24 | 24551424 |
| 25 | 30078125 |
| 26 | 36558080 |
| 27 | 44109603 |
| 28 | 52860416 |
| 29 | 62948009 |
| 30 | 74520000 |