n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | 5 |
5 | 76 |
6 | 1624 |
7 | 52116 |
8 | 2298708 |
9 | 133929216 |
10 | 9961180416 |
11 | 921248743680 |
12 | 103715841415680 |
13 | 13967643016085760 |
14 | 2217449301162071040 |
15 | 409861043056032503040 |
16 | 87262626872384643052800 |
17 | 21202798521768886355558400 |
18 | 5831660090586059239329792000 |
19 | 1802587564536011525042697830400 |
[1,0,1,5,76,1624,52116,2298708,133929216, 9961180416,921248743680,103715841415680, 13967643016085760,2217449301162071040, 409861043056032503040,87262626872384643052800, 21202798521768886355558400, 5831660090586059239329792000, 1802587564536011525042697830400] |