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A143476 as a simple table

na(n)
01
1720
27257600
315676416000
43476402012160000
5162695614169088000000
64919915372473221120000000
760219764159072226508800000000
8507464726196802564122476544000000000
93288371425755280615513648005120000000000

[1,720,7257600,15676416000,3476402012160000,
 162695614169088000000,4919915372473221120000000,
 60219764159072226508800000000,
 507464726196802564122476544000000000,
 3288371425755280615513648005120000000000]