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A173405 as a simple table

n a(n)
1 1
2 813689707488840
3 66616980501713943527764656942096000
4 7872210237152082461519795095323072380800492540574161420800
5 221848107812451948017800051742871374872981904431531975133609486296113025373335680000 

[1,813689707488840,
 66616980501713943527764656942096000,
 78722102371520824615197950953230723808004925405741\
 61420800,
 22184810781245194801780005174287137487298190443153\
 1975133609486296113025373335680000]

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Last modified August 13 20:30 EDT 2024. Contains 375144 sequences. (Running on oeis4.)