341446

Appears in sequences

• a(n) = n^2*binomial(n,2).at n=28A092364
• a(n) = (prime(n)^4 - prime(n)^3)/2.at n=9A138423
• a(n) = Sum_{k=1..n^2, gcd(n,k) = 1} k.at n=28A308474