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A187193 as a simple table

na(n)
10
20
31440
440896
5364800
61902240
77197120
821960960
957407616
10133531200
11283488480
12559247040
131038660480

[0,0,1440,40896,364800,1902240,7197120,21960960,
 57407616,133531200,283488480,559247040,1038660480]