70889062480domain: NAppears in sequencesa(n) = 10th Fibonacci polynomial evaluated at 2^n.at n=4A020536Denominators of continued fraction convergents to sqrt(65).at n=9A041113Denominators of continued fraction convergents to sqrt(585).at n=19A042121y-values in the solution to x^2 - 65*y^2 = 1.at n=5A176369