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A152629 as a simple table

na(n)
11
22
36
424
5120
6720
75040
840320
9339840
103127680
1131252896
12338008224
133956752544
1450272802560
15674010518704
169686853876720

[1,2,6,24,120,720,5040,40320,339840,3127680,
 31252896,338008224,3956752544,50272802560,
 674010518704,9686853876720]