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 | 4 |
3 | 206 |
4 | 433284 |
5 | 131782705528 |
6 | 21826979750768842816 |
7 | 7637711141088259236341772556400 |
8 | 22237835372502772582455643527946875785037270496 |
9 | 2138255561398515897400115384129197209090292453675665760256378885504 |