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 | 80 |
| 3 | 405 |
| 4 | 1280 |
| 5 | 3125 |
| 6 | 6480 |
| 7 | 12005 |
| 8 | 20480 |
| 9 | 32805 |
| 10 | 50000 |
| 11 | 73205 |
| 12 | 103680 |
| 13 | 142805 |
| 14 | 192080 |
| 15 | 253125 |
| 16 | 327680 |
| 17 | 417605 |
| 18 | 524880 |
| 19 | 651605 |
| 20 | 800000 |
| 21 | 972405 |
| 22 | 1171280 |
| 23 | 1399205 |
| 24 | 1658880 |
| 25 | 1953125 |
| 26 | 2284880 |
| 27 | 2657205 |
| 28 | 3073280 |
| 29 | 3536405 |
| 30 | 4050000 |
| 31 | 4617605 |
| 32 | 5242880 |
| 33 | 5929605 |