97500

Appears in sequences

• a(n) = n^2*(n^2 - 1)/4.at n=25A006011
• Saint-Exupéry numbers: ordered products of the three sides of Pythagorean triangles.at n=28A057096
• Averages of twin prime pairs of A074378.at n=22A154563
• Number of (w,x,y,z) with all terms in {0,...,n}, w even and x odd.at n=24A212766
• Numbers k such that k mod phi(k) = lambda(k).at n=41A290184