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) |
|---|---|
| 1 | 22 |
| 2 | 468 |
| 3 | 7632 |
| 4 | 33542208 |
| 5 | 8556318720 |
| 6 | 128848822272 |
| 7 | 2305842870701260800 |
| 8 | 2658455991569831742348849607813890048 |
| 9 | 191561942608236104636337386514471893476304705594327040 |