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 | 1 |
2 | 3 |
3 | 15 |
4 | 210 |
5 | 26565 |
6 | 358999410 |
7 | 64449908117864115 |
8 | 2076895351339769396027702893296360 |
9 | 2156747150208372213435450937462080290024600343143329179374709804540 |