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 | 0 |
3 | 1 |
4 | 6 |
5 | 25 |
6 | 160 |
7 | 1981 |
8 | 24906 |
9 | 295625 |
10 | 4044900 |
11 | 68136541 |
12 | 1260048086 |
13 | 24330807865 |
14 | 508029259920 |
15 | 11686882860381 |
16 | 289532464998146 |
17 | 7588430921962825 |
18 | 210991834698749020 |
19 | 6244230552027963901 |
20 | 195584639712483465486 |
21 | 6442981074293371848185 |