n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 45 |
7 | 1470 |
8 | 43890 |
9 | 1291815 |
10 | 38710035 |
11 | 1199167200 |
12 | 38692476900 |
13 | 1304976397725 |
14 | 46070080281225 |
15 | 1702810398539250 |
16 | 65862570279255750 |
17 | 2663551451057371875 |
18 | 112503209942059311375 |
19 | 4957166849516125744500 |
[0,0,0,0,1,45,1470,43890,1291815,38710035, 1199167200,38692476900,1304976397725, 46070080281225,1702810398539250,65862570279255750, 2663551451057371875,112503209942059311375, 4957166849516125744500] |