82400

Appears in sequences

• a(1)=3, a(2)=2, a(n)=3*a(n-1) + 2*a(n-2).at n=9A189736
• a(n) = phi(A291789(n)).at n=24A291805
• a(n) = Sum_{k=0..floor(n/3)} 2^k * binomial(2*k+1,2*n-6*k+1).at n=20A387769