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A003047 as a simple table

n a(n)
1 1
2 1
3 2
4 10
5 280
6 235200
7 173859840000
8 98238542885683200000000
9 32169371027674057560745102540800000000000000000
10 3518552669874927170883258602839130084576857453953842493259776000000000000000000000000000000000

[1,1,2,10,280,235200,173859840000,
 98238542885683200000000,
 32169371027674057560745102540800000000000000000,
 35185526698749271708832586028391300845768574539538\
 42493259776000000000000000000000000000000000]

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Last modified April 19 06:41 EDT 2024. Contains 371782 sequences. (Running on oeis4.)