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A163085 as a simple table

na(n)
01
11
22
312
472
52160
643200
76048000
8423360000
9266716800000
1067212633600000
11186313420339200000
12172153600393420800000
132067909047925770649600000
147097063852481244869427200000

[1,1,2,12,72,2160,43200,6048000,423360000,
 266716800000,67212633600000,186313420339200000,
 172153600393420800000,2067909047925770649600000,
 7097063852481244869427200000]