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 | 0 |
2 | 3 |
3 | 210 |
4 | 21840 |
5 | 4248240 |
6 | 2439718848 |
7 | 4490186803200 |
8 | 21306683553761280 |
9 | 243362078944548372480 |
10 | 8447714338361362064867328 |
11 | 916006668995029638614026813440 |
12 | 257020596641378222874290942398955520 |