A172717 - OEIS

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A172717 as a simple table

n	a(n)
1	1310799454720
2	3321735626954282018581900800
3	20877662827076969301744211245461828236480000
4	193433401300524863973681384616930307135746244016427424448000

[1310799454720,3321735626954282018581900800, 20877662827076969301744211245461828236480000, 19343340130052486397368138461693030713574624401642\ 7424448000]