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 | 1 |
2 | 4 |
3 | 576 |
4 | 518400 |
5 | 13168189440000 |
6 | 229442532802560000 |
7 | 437763136697395052544000000 |
8 | 40990389067797283140009984000000 |
9 | 1263377636044591724886240423994982400000000 |
10 | 92956902680071188234494975268405495542386262016000000000000 |