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A091033 as a simple table

na(n)
21
3180
425200
54233600
6898128000
7239740300800
879332244992000
932011868528640000
1015509750302126080000
118898339094906060800000
125971815866682429603840000
134637851802955964809216000000

[1,180,25200,4233600,898128000,239740300800,
 79332244992000,32011868528640000,
 15509750302126080000,8898339094906060800000,
 5971815866682429603840000,
 4637851802955964809216000000]