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 | 2 |
3 | 6 |
4 | 42 |
5 | 1806 |
6 | 1631721 |
7 | 443752508927 |
8 | 9376966151402427009536 |
9 | 292117920945338351144537464770855449375232 |
10 | 1098221126335915194898500730834145753769059346709551018699709189743396297017856 |