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A221118 as a simple table

n a(n)
1 0
2 0
3 1769
4 1424745
5 709142453
6 326416281638
7 143089274586815
8 62066225367961944

[0,0,1769,1424745,709142453,326416281638,
 143089274586815,62066225367961944]

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Last modified February 27 16:21 EST 2024. Contains 370378 sequences. (Running on oeis4.)