641601

Appears in sequences

• For the 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, this sequence gives the corresponding values of w*x.at n=27A057442
• Six-digit squares that are concatenation of two 3-digit primes.at n=12A153050
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=15A208551