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 | 1 |
| 1 | 6 |
| 2 | 27216 |
| 3 | 1344924798336 |
| 4 | 3605580335899213007486976 |
| 5 | 1648055031941075082958467426002632704000000 |
| 6 | 312704667066499295437237787452750428210311485710262201221120000000 |