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A052145 as a simple table

n a(n)
1 1
2 9
3 200
4 8820
5 653184
6 73180800
7 11564467200
8 2451889440000
9 671854030848000
10 231125690776780800
11 97537253236899840000
12 49549698749529538560000
13 29829250083328819200000000
14 20999962511521107738624000000
15 17094073187896757112117657600000

[1,9,200,8820,653184,73180800,11564467200,
 2451889440000,671854030848000,231125690776780800,
 97537253236899840000,49549698749529538560000,
 29829250083328819200000000,
 20999962511521107738624000000,
 17094073187896757112117657600000]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)