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A309205 as a simple table

na(n)
11
22
324
4720
58064
63628800
7479001600
887178291200
92988969984000
106402373705728000
112432902008176640000
121124000727777607680000
1347726800133326110720000
1421225866375084507136000000
1560977668922342772100300800000
16265252859812191058636308480000000

[1,2,24,720,8064,3628800,479001600,87178291200,
 2988969984000,6402373705728000,
 2432902008176640000,1124000727777607680000,
 47726800133326110720000,
 21225866375084507136000000,
 60977668922342772100300800000,
 265252859812191058636308480000000]