625528782domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(328).at n=6A041618a(n) = 18*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 18.at n=7A090307a(n) = n^7 + 7*n^5 + 14*n^3 + 7*n.at n=18A261540