206082

Appears in sequences

• Numbers n such that n divides n-th Lucas number A000032(n).at n=16A016089
• Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.at n=41A120361
• Averages of twin prime pairs k such that k*2 and k/2 are squares.at n=18A154670