A034205 - OEIS

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A034205 as a simple table

n	a(n)
1	0
2	0
3	0
4	50
5	19963
6	3561696
7	375158732
8	28900653074
9	1816451773537
10	98630203059528
11	4776270743160543
12	210237300968913438
13	8515061595908633741
14	320057339932017724468

[0,0,0,50,19963,3561696,375158732,28900653074, 1816451773537,98630203059528,4776270743160543, 210237300968913438,8515061595908633741, 320057339932017724468]