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 | 707195371192426622240452051915172831683411968000000000 |
5 | 5289239086872492808525454741861751983960246149231077646632506991757159229816832000000000000000 |