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 | 0 |
1 | 2 |
2 | 36 |
3 | 1008 |
4 | 41600 |
5 | 2381400 |
6 | 180457200 |
7 | 17467670528 |
8 | 2100621828096 |
9 | 306960977700000 |
10 | 53529274174376000 |
11 | 10973787848179200000 |
12 | 2611472797582941487104 |
13 | 713649909809783275801472 |
14 | 221870902844468552220000000 |
15 | 77837994361783539267010560000 |