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 | 7 |
| 2 | 704 |
| 3 | 10935 |
| 4 | 77824 |
| 5 | 359375 |
| 6 | 1259712 |
| 7 | 3647119 |
| 8 | 9175040 |
| 9 | 20726199 |
| 10 | 43000000 |
| 11 | 83263367 |
| 12 | 152285184 |
| 13 | 265474495 |
| 14 | 444242624 |
| 15 | 717609375 |
| 16 | 1124073472 |
| 17 | 1713767399 |
| 18 | 2550916800 |
| 19 | 3716624599 |
| 20 | 5312000000 |
| 21 | 7461652527 |
| 22 | 10317571264 |
| 23 | 14063409455 |
| 24 | 18919194624 |
| 25 | 25146484375 |