As p runs through the primes, sequence gives denominator of Sum_{k=1..p-1} 1/k^2.
A186720
As p runs through the primes, sequence gives denominator of Sum_{k=1..p-1} 1/k^2.
Terms
- a(0) =1a(1) =4a(2) =144a(3) =3600a(4) =1270080a(5) =153679680a(6) =519437318400
External references
- oeis: A186720