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A090766
as a simple table
n
a(n)
0
1
1
2
2
18
3
1200
4
735000
5
4667544000
6
332086420512000
7
279394363051195392000
[1,2,18,1200,735000,4667544000,332086420512000, 279394363051195392000]
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Last modified April 17 16:30 EDT 2024. Contains 371765 sequences. (Running on oeis4.)