3078251

Appears in sequences

• Positive integers k such that k divides 12^k - 1.at n=24A014951
• a(n) = (prime(n)^5 - prime(n)^4)/2.at n=8A138439
• Numbers n dividing u(n), where the Lucas sequence is defined u(i) = u(i-1) - 3*u(i-2) with initial conditions u(0)=0, u(1)=1.at n=27A228440