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) |
---|---|
0 | 1 |
1 | 2 |
2 | 16 |
3 | 520 |
4 | 66560 |
5 | 33882400 |
6 | 69055283200 |
7 | 564153087455360 |
8 | 18462510039810703360 |
9 | 2418626471936038215754240 |
10 | 1267795676362601991645220044800 |
11 | 2658560574070850656450883768752998400 |