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A001807 as a simple table

na(n)
5120
64320
7105840
82257920
945722880
10914457600
1118441561600
12379369267200
138014175769600
14174530938982400
153926946127104000
1691390746230784000
172200993805058048000
1854855537910677504000
191414489227553898496000
2037719712734770626560000

[120,4320,105840,2257920,45722880,914457600,
 18441561600,379369267200,8014175769600,
 174530938982400,3926946127104000,
 91390746230784000,2200993805058048000,
 54855537910677504000,1414489227553898496000,
 37719712734770626560000]