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 | 1 |
| 2 | 8 |
| 3 | 666 |
| 4 | 381424 |
| 5 | 976395820 |
| 6 | 8575979362560 |
| 7 | 215717608046511873 |
| 8 | 13590707419428422843904 |
| 9 | 1933216160887575268614599040 |
| 10 | 571506744082785127089569166384000 |