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A005249 as a simple table

na(n)
01
11
212
32160
46048000
5266716800000
6186313420339200000
72067909047925770649600000
8365356847125734485878112256000000
91028781784378569697887052962909388800000000
1046206893947914691316295628839036278726983680000000000

[1,1,12,2160,6048000,266716800000,
 186313420339200000,2067909047925770649600000,
 365356847125734485878112256000000,
 1028781784378569697887052962909388800000000,
 46206893947914691316295628839036278726983680000000\
 000]