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A246615 as a simple table

na(n)
01
10
20
30
40
50
60
70
85040
9362880
1018144000
11804988800
1234488115200
131482082842240
1465120246231040
152955402450000000
16139297568464454400
176837892496270035200
18350034595015623598080
1918692451288585606954240
201041114148173066240000000

[1,0,0,0,0,0,0,0,5040,362880,18144000,804988800,
 34488115200,1482082842240,65120246231040,
 2955402450000000,139297568464454400,
 6837892496270035200,350034595015623598080,
 18692451288585606954240,1041114148173066240000000]