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A092956 as a simple table

na(n)
01
18
290
31344
425200
5570240
615135120
7461260800
815878903040
9609493248000
1025812039052800
111195656969830400
1260138698780160000
133264143527636992000
14190165504623494400000
1511836497605427855360000
16783921372659482337280000

[1,8,90,1344,25200,570240,15135120,461260800,
 15878903040,609493248000,25812039052800,
 1195656969830400,60138698780160000,
 3264143527636992000,190165504623494400000,
 11836497605427855360000,783921372659482337280000]