190625

Appears in sequences

• Numbers n such that n | 7^n + 6^n + 5^n + 4^n + 3^n.at n=19A057255
• Numbers j that are the hypotenuse of exactly 16 distinct integer-sided right triangles, i.e., j^2 can be written as a sum of two squares in 16 ways.at n=12A097238