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 | 1 |
| 2 | 2560 |
| 3 | 295245 |
| 4 | 8912896 |
| 5 | 126953125 |
| 6 | 1118624256 |
| 7 | 7061881225 |
| 8 | 34896609280 |
| 9 | 142958160441 |
| 10 | 505000000000 |
| 11 | 1582182900661 |
| 12 | 4489008906240 |
| 13 | 11717971807165 |
| 14 | 28491583515136 |
| 15 | 65161494140625 |
| 16 | 141287244169216 |
| 17 | 292319115565105 |