6905856

Appears in sequences

• a(n) = 2*a(n-1) + 4*a(n-2), a(0)=1, a(1)=1.at n=14A084057
• a(n) = 4^n * T(n,3/2) where T is the Chebyshev polynomial of the first kind.at n=7A099140
• Duplicate of A084057.at n=13A163302