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A202761
as a simple table
n
a(n)
1
1
2
7
3
18
4
146
5
2128
6
28764
7
1064140
8
59594272
9
4526156600
[1,7,18,146,2128,28764,1064140,59594272, 4526156600]
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Last modified April 19 16:21 EDT 2024. Contains 371794 sequences. (Running on oeis4.)
