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 | 0 |
2 | 6 |
3 | 9 |
4 | 240 |
5 | 1170 |
6 | 25812 |
7 | 244440 |
8 | 5464512 |
9 | 79579584 |
10 | 1926411120 |
11 | 37900930320 |
12 | 1018338863616 |
13 | 25047229315680 |
14 | 752077828672128 |
15 | 22027545026192160 |
16 | 738063856107279360 |
17 | 24935406131189352960 |
18 | 927531711339595204608 |
19 | 35370336293213512527360 |