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A265004
as a simple table
n
a(n)
1
1
2
4
3
54
4
1720
5
97341
6
8360853
7
1001060834
8
155796077603
9
30055866217955
[1,4,54,1720,97341,8360853,1001060834, 155796077603,30055866217955]
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Last modified June 9 00:56 EDT 2023. Contains 363165 sequences. (Running on oeis4.)