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A111887 as a simple table

n a(n)
0 1
1 13068
2 104587344
3 673781602752
4 3878864920694016
5 21006340945438768128
6 110019668725577574273024
7 565858042127972959667208192
8 2882220940619488483325345857536
9 14605752814655604919042956624396288

[1,13068,104587344,673781602752,3878864920694016,
 21006340945438768128,110019668725577574273024,
 565858042127972959667208192,
 2882220940619488483325345857536,
 14605752814655604919042956624396288]

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Last modified August 6 10:14 EDT 2020. Contains 336245 sequences. (Running on oeis4.)