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) |
---|---|
0 | 1 |
1 | 3 |
2 | 75 |
3 | 545835 |
4 | 5315654681981355 |
5 | 23545154085734896649184490637144855476395 |
6 | 1408419189834457368564204829523128565178390518208834734403870775971211916384631776000167564122146475 |