n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 10 |
4 | 180 |
5 | 16076 |
6 | 19902600 |
7 | 134324703472 |
8 | 6229088692170120 |
9 | 3043225095505808401540 |
10 | 82539616591562766578923554000 |
11 | 20307821456335470464284341150217960760 |
12 | 48436056178178689690954566323758042309244664480 |
[1,1,2,10,180,16076,19902600,134324703472, 6229088692170120,3043225095505808401540, 82539616591562766578923554000, 20307821456335470464284341150217960760, 48436056178178689690954566323758042309244664480] |