A168442 - OEIS

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A168442 as a simple table

n	a(n)
0	1
1	2
2	96
3	368640
4	237817036800
5	44185111712759808000
6	3612115491258144161739571200000
7	184260348281378257834400760180580024320000000

[1,2,96,368640,237817036800,44185111712759808000, 3612115491258144161739571200000, 184260348281378257834400760180580024320000000]