a(n) = Fibonacci(2n+1) * binomial(2n,n).
A102307
a(n) = Fibonacci(2n+1) * binomial(2n,n).
Terms
- a(0) =1a(1) =4a(2) =30a(3) =260a(4) =2380a(5) =22428a(6) =215292a(7) =2093520a(8) =20553390a(9) =203280220a(10) =2022339176a(11) =20215564824a(12) =202879303900
External references
- oeis: A102307