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A178966 as a simple table

n a(n)
1 3
2 68491
3 1472837
4 20933977
5 115763405909
6 860612330076805920786264707
7 295312333859267885313149356219
8 3030645565448009172324576658633624992466799
9 1438089684181622246462815859549895702132195129054882453928357949021844283495791173

[3,68491,1472837,20933977,115763405909,
 860612330076805920786264707,
 295312333859267885313149356219,
 3030645565448009172324576658633624992466799,
 14380896841816222464628158595498957021321951290548\
 82453928357949021844283495791173]

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Last modified January 27 06:18 EST 2022. Contains 350601 sequences. (Running on oeis4.)