n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 6 |
3 | 72 |
4 | 6690 |
5 | 1536000 |
6 | 1398496680 |
7 | 4165565871600 |
8 | 48724656010825410 |
9 | 1991141239554487077120 |
10 | 325362786100184356140612996 |
11 | 190695111051826003327799496771600 |
12 | 452459020719698368348441955010421696800 |
[1,0,6,72,6690,1536000,1398496680,4165565871600, 48724656010825410,1991141239554487077120, 325362786100184356140612996, 190695111051826003327799496771600, 452459020719698368348441955010421696800] |