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 | 8 |
| 2 | 1408 |
| 3 | 2165800 |
| 4 | 37333296 |
| 5 | 19384601600 |
| 6 | 69370076160 |
| 7 | 69370076160 |
| 8 | 56288711711232000 |
| 9 | 7917914554368000000 |
| 10 | 199449790781142859776 |