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A002691 as a simple table

na(n)
01
19
2120
32100
445360
51164240
634594560
71167566400
844108064000
91843717075200
1084475764172800
114209708914611200
12226676633863680000
1313114862387827200000
14811372819726909440000
1553449184499510159360000
163735154775612827607040000

[1,9,120,2100,45360,1164240,34594560,1167566400,
 44108064000,1843717075200,84475764172800,
 4209708914611200,226676633863680000,
 13114862387827200000,811372819726909440000,
 53449184499510159360000,3735154775612827607040000]