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 | 3 |
2 | 63504 |
3 | 2260442279270448 |
4 | 3379470372507391964272022793486336 |
5 | 2097229364987262298214192667129919538956418868293588090880000 |