A147717 - OEIS

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A147717 as a simple table

n	a(n)
1	1
2	477638700
3	46295775130831740013500
4	693090538757877947419844421229560759330
5	2879839278762149413553488830486463735739514876362382240000

[1,477638700,46295775130831740013500, 693090538757877947419844421229560759330, 28798392787621494135534888304864637357395148763623\ 82240000]