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 | 12 |
3 | 2160 |
4 | 2449440000 |
5 | 8488905214204800000000000 |
6 | 3025568387202006082882734693673523654400000000000000000000000000 |