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 | 170974031122008628879954060917200710847692800 |
2 | 1893010442758976546037991125738431754692198400 |
3 | 54361481238923605327597493185154939181072384000 |