68450

Appears in sequences

• Numbers that are the sum of 2 nonzero squares in exactly 5 ways.at n=26A025288
• Numbers n that are the hypotenuse of exactly 12 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 12 ways.at n=26A097226
• a(n) = Product_{d|n, d>1} prime(A286378(d)-1).at n=49A317944
• Numbers k such that k^2 divides 5^k - 4^k - 3^k.at n=33A343716