124865

Appears in sequences

• a(n) = n*(2*n^2 + 1)*(n^2 + 1)/6.at n=12A052459
• Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 40 ways.at n=23A097282
• Numbers n that are the product of four distinct odd primes and x^2 + y^2 = n has integer solutions.at n=17A264499