A012733 - OEIS

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A012733 as a simple table

n	a(n)
0	2
1	88
2	353952
3	4859875200
4	286589256061440
5	38349390501320693760
6	11520524205295446001950720
7	6360705742909296331970308177920

[2,88,353952,4859875200,286589256061440, 38349390501320693760,11520524205295446001950720, 6360705742909296331970308177920]