1504863360domain: NAppears in sequencesa(2*n-1) = Product_{i=1..n} Fibonacci(2*i-1) and a(2*n) = Product_{i=1..n} Fibonacci(2*i).at n=13A123029Product of first n nonzero even-indexed Fibonacci numbers F(2), F(4), F(6), ..., F(2*n).at n=6A194157