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 | 154345556085770649600 |
2 | 9186050031556349952000 |
3 | 680489641226538823680000 |
4 | 6205958672455589512937472000 |
5 | 13297004660164711617331200000 |
6 | 15229814702070563916152832000 |