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A333690 as a simple table

na(n)
11
22
33
44
520
648
7112
8864
92916
1034560
11152064
121728000
139360000
14108864000
151049760000
1610668672000
17172802851200
182184944025600
1932025036718080
20438839318937600
216636767477760000
22108637562880000000
231940004332259840000
2424494663395141632000
25673031429554176000000

[1,2,3,4,20,48,112,864,2916,34560,152064,1728000,
 9360000,108864000,1049760000,10668672000,
 172802851200,2184944025600,32025036718080,
 438839318937600,6636767477760000,
 108637562880000000,1940004332259840000,
 24494663395141632000,673031429554176000000]