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) |
---|---|
5 | 1 |
6 | 15 |
7 | 2625 |
8 | 5145000 |
9 | 115500105000 |
10 | 31107065779125000 |
11 | 106290666272665586250000 |
12 | 4888916787397632685446712500000 |
13 | 3213029533312882851092617168726650000000 |
14 | 31994396252008620689512942684899448442297400000000 |
15 | 5110196342132990821731075942773950194550115556089232000000000 |