36643328

Appears in sequences

• a(n) = 2*a(n-1) + 6*a(n-2).at n=14A083098
• a(n) = 6^n * T(n, 4/3) where T is the Chebyshev polynomial of the first kind.at n=7A099142
• a(n) = Sum_{k=0..n} n^k * binomial(2*n,2*k).at n=7A333990