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A172665 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 467046072593100
6 7011583640699581889649892843200
7 1126052188643363954802820836947166068046894450600
8 2120920516514529364095866499134381437091878416644933740597080005445 

[0,0,0,1,467046072593100,
 7011583640699581889649892843200,
 1126052188643363954802820836947166068046894450600,
 21209205165145293640958664991343814370918784166449\
 33740597080005445]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)