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 | 43252003274489856000 |
4 | 326318176648849198250599213408124182588293120000000000 |
5 | 6117367460827460912265057790940131872699535863380422035173008779767508369408000000000000000000 |