129625

Appears in sequences

• Numbers n such that n | 7^n + 6^n + 5^n + 4^n + 3^n.at n=17A057255
• Numbers k that can be expressed as k = w+x = y*z with w*x = (y+z)^2 where w, x, y, and z are all positive integers.at n=31A057369
• a(n) = 9*n^3 - 18*n^2 + 10*n.at n=25A086605
• Numbers n that are the hypotenuse of exactly 31 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 31 ways.at n=17A097244