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 | 0 |
2 | 0 |
3 | 0 |
4 | 4 |
5 | 10 |
6 | 40 |
7 | 210 |
8 | 5264 |
9 | 45360 |
10 | 409800 |
11 | 4065600 |
12 | 77948640 |
13 | 1183422240 |
14 | 17527233360 |
15 | 267109642800 |
16 | 5422495921920 |
17 | 110998923235200 |
18 | 2270809072896000 |
19 | 47142009514454400 |
20 | 1116394268619772800 |
21 | 27963045712157472000 |
22 | 718066383283082803200 |