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A171775 as a simple table

n a(n)
1 1
2 3
3 5
4 52
5 130
6 1885
7 1073741824
8 4398046511104

[1,3,5,52,130,1885,1073741824,4398046511104]

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Last modified January 21 11:08 EST 2020. Contains 331105 sequences. (Running on oeis4.)