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 | 2 |
2 | 288 |
3 | 1886976 |
4 | 489104179200 |
5 | 4755360379856486400 |
6 | 1695944421638473850132889600 |
7 | 21967113634648374162210646578639667200 |
8 | 10286692771039109536373764545035369981946101760000 |
9 | 173770439600109774111384717714984362383506603790098046648320000 |