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 | 2 |
2 | 20 |
3 | 584 |
4 | 69904 |
5 | 34636832 |
6 | 69810262080 |
7 | 567382630219904 |
8 | 18519084246547628288 |
9 | 2422583247133816584929792 |
10 | 1268889750375080065623288448000 |
11 | 2659754699919401766201267083003561984 |
12 | 22306191045953951743035482794815064402563072 |