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 | 3674160 |
3 | 88580102706155225088000 |
4 | 31180187340244394380451751732775816935095098996162560000000000 |
5 | 234260670776288045954071997895225719627421688127737132331392149764072811894713478221812860985540608000000000000000000 |