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A129655 as a simple table

na(n)
11
22
36
424
5120
6720
75040
855440
9720720
1012252240
11232792560
126750984240
13276790353840
1412732356276640
15523410559111440
1624076885719126240
171131613628798933280
18100713612963105061920
1920042008979657907322080

[1,2,6,24,120,720,5040,55440,720720,12252240,
 232792560,6750984240,276790353840,12732356276640,
 523410559111440,24076885719126240,
 1131613628798933280,100713612963105061920,
 20042008979657907322080]