A045516 - OEIS

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A045516 as a simple table

n	a(n)
1	40320
2	479001600
3	403291461126605635584000000
4	4274883284060025564298013753389399649690343788366813724672000000000000
5	40526919504877216755680601905432322134980384796226602145184481280000000000000

[40320,479001600,403291461126605635584000000, 42748832840600255642980137533893996496903437883668\ 13724672000000000000, 40526919504877216755680601905432322134980384796226\ 602145184481280000000000000]