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 | 1 |
2 | 6 |
3 | 40 |
4 | 496 |
5 | 5400 |
6 | 114400 |
7 | 1760080 |
8 | 47671680 |
9 | 1090230400 |
10 | 34312096000 |
11 | 916877068800 |
12 | 39605683532800 |
13 | 1211405062067200 |
14 | 55580939301888000 |
15 | 2260295506653184000 |
16 | 115398744818925568000 |
17 | 4928605977341190144000 |
18 | 305987190350116667392000 |