a(n) = Sum_{k = 1..2*n} binomial(2*n,k) * Fibonacci(2*k).

A219462

a(n) = Sum_{k = 1..2*n} binomial(2*n,k) * Fibonacci(2*k).

Terms

    a(0) =0a(1) =5a(2) =75a(3) =1000a(4) =13125a(5) =171875a(6) =2250000a(7) =29453125a(8) =385546875a(9) =5046875000a(10) =66064453125a(11) =864794921875

External references