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 | 40 |
2 | 8100 |
3 | 2310000 |
4 | 768075000 |
5 | 278719056000 |
6 | 107022956040000 |
7 | 42753018765600000 |
8 | 17585519046944062500 |
9 | 7397979398239787500000 |
10 | 3168258657090171394750000 |
11 | 1376657183877933677265000000 |