Denominator of Sum_{i=n(n-1)/2+1..n(n+1)/2} 1/i.
A082681
Denominator of Sum_{i=n(n-1)/2+1..n(n+1)/2} 1/i.
Terms
- a(0) =1a(1) =6a(2) =60a(3) =2520a(4) =20020a(5) =1627920a(6) =124324200a(7) =1694579040a(8) =446626220040
External references
- oeis: A082681