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A001418
as a simple table
n
a(n)
0
1
1
8
2
1368
3
300608
4
186086600
5
123912532224
6
129950723279272
[1,8,1368,300608,186086600,123912532224, 129950723279272]
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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)