124236810domain: NAppears in sequencesLet P(n,x) be defined by P(1,x)=P(2,x)=x, P(n,x)=P(n-1,x)*P(n-2,x)+1; then a(n) is the maximum element among coefficients of P(n,x) of degree F(n) (where F(n) denotes the n-th Fibonacci number).at n=9A076534