69739671domain: NAppears in sequencesa(n) = -(8*a(n-4)*a(n-1)+57*a(n-3)*a(n-2))/a(n-5) with initial values 1, 0, -1, 1, 8, 57, -455.at n=9A241594a(n) = -(8*a(n-4)*a(n-1) - 57*a(n-3)*a(n-2))/a(n-5) with initial values -1, 0, 1, -1, -8, 57, 455.at n=9A241595