29813081779domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(392).at n=16A041744Generalized Pellian with second term equal to 9.at n=26A048696a(n) = ((1+4*sqrt(2))*(3+2*sqrt(2))^n + (1-4*sqrt(2))*(3-2*sqrt(2))^n)/2.at n=13A164604