15502032

Appears in sequences

• Averages of twin prime pairs k such that k*13 and k/13 are squares.at n=13A154675
• a(n) = Product_{d|n} lcm(sigma(d), pod(d)) where sigma(k) is the sum of divisors of k (A000203) and pod(k) is the product of divisors of k (A007955).at n=25A334809