a(n) = Product_{k=1..n} lcm(k,n)/gcd(k,n).
A127553
a(n) = Product_{k=1..n} lcm(k,n)/gcd(k,n).
Terms
- a(0) =1a(1) =2a(2) =18a(3) =96a(4) =15000a(5) =6480a(6) =84707280a(7) =41287680a(8) =21427701120a(9) =56700000000
External references
- oeis: A127553
A127553
a(n) = Product_{k=1..n} lcm(k,n)/gcd(k,n).