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A367763 as a simple table

na(n)
11
21
33
43
55
6900
7756000
815876000
942674688000
1056899584000
111204450394112000
122782280410398720000
13154249625952505036800000
1461082851877191994572800000

[1,1,3,3,5,900,756000,15876000,42674688000,
 56899584000,1204450394112000,2782280410398720000,
 154249625952505036800000,
 61082851877191994572800000]