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A035279 as a simple table

na(n)
11
220
3600
424000
51200000
672000000
75040000000
8403200000000
936288000000000
103628800000000000
11399168000000000000
1247900160000000000000
136227020800000000000000
14871782912000000000000000
15130767436800000000000000000
1620922789888000000000000000000

[1,20,600,24000,1200000,72000000,5040000000,
 403200000000,36288000000000,3628800000000000,
 399168000000000000,47900160000000000000,
 6227020800000000000000,871782912000000000000000,
 130767436800000000000000000,
 20922789888000000000000000000]