a(n) = Fibonacci(n-1) * Fibonacci(n+1) * Fibonacci(n+2).

Terms

a(0) =0a(1) =6a(2) =15a(3) =80a(4) =312a(5) =1365a(6) =5712a(7) =24310a(8) =102795a(9) =435744a(10) =1845360a(11) =7817849a(12) =33115680a(13) =140282310a(14) =594242103a(15) =2517255280a(16) =10663255848a(17) =45170290605a(18) =191344398960a(19) =810547917686