a(n) = tribonacci(Fibonacci(n)).A111425a(n) = tribonacci(Fibonacci(n)).Terms a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =4a(6) =24a(7) =504a(8) =66012a(9) =181997601External referencesoeis: A111425