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 | 181 |
2 | 3701360 |
3 | 26231137608 |
4 | 247462638659680 |
5 | 2112817100467905536 |