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A087315 as a simple table

na(n)
01
14
272
321600
4190512000
5580909190400000
6428616352408083840000000
7859278392084450410309036800000000000
82097197194438629126172451944256706311040000000000000

[1,4,72,21600,190512000,580909190400000,
 428616352408083840000000,
 859278392084450410309036800000000000,
 20971971944386291261724519442567063110400000000000\
 00]