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 | 2 |
2 | 6 |
3 | 450 |
4 | 405168750 |
5 | 10326560651880195445980468750 |
6 | 17149769349660883198128523550890723880659651223306378240865271303752564539222570800781250 |