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A207158 as a simple table

n a(n)
1 1
2 7
3 18
4 83
5 883
6 8004
7 137386
8 3684780
9 120845236
10 6910251668

[1,7,18,83,883,8004,137386,3684780,120845236,
 6910251668]

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Last modified March 26 17:05 EDT 2023. Contains 361551 sequences. (Running on oeis4.)