n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 36 |
3 | 624 |
4 | 18256 |
5 | 814144 |
6 | 51475776 |
7 | 4381112064 |
8 | 482962852096 |
9 | 66942218896384 |
10 | 11394877025289216 |
11 | 2336793875186479104 |
12 | 568240131312188379136 |
13 | 161669933656307658932224 |
14 | 53204153193639888357113856 |
15 | 20053432927718528320240287744 |
[1,4,36,624,18256,814144,51475776,4381112064, 482962852096,66942218896384,11394877025289216, 2336793875186479104,568240131312188379136, 161669933656307658932224, 53204153193639888357113856, 20053432927718528320240287744] |