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 | 0 |
3 | 0 |
4 | 0 |
5 | 399 |
6 | 357857 |
7 | 13055867207 |
8 | 558545862282195466 |
9 | 5070602400912917604201018916608 |
10 | 30432527221704537086371993251530170527181380482652674 |
11 | 99999999999999999999999999999999999999999999999999999999999999999999968818280070033816399 |