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 | 10 |
3 | 280 |
4 | 38080 |
5 | 18887680 |
6 | 39286374400 |
7 | 319319651123200 |
8 | 10504339243348787200 |
9 | 1374135642457914946355200 |
10 | 721146385161913763847208960000 |
11 | 1511615130036671973985522422906880000 |
12 | 12683442560532981918553467630898150113280000 |
13 | 425533759542581882449393472981756918078982062080000 |