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A060055 as a simple table

na(n)
12
212
3720
430240
51209600
647900160
71307674368000
874724249600
910670622842880000
105109094217170944000
11802857662698291200000
1214101100039391805440000
131693824136731743669452800000

[2,12,720,30240,1209600,47900160,1307674368000,
 74724249600,10670622842880000,5109094217170944000,
 802857662698291200000,14101100039391805440000,
 1693824136731743669452800000]