1918818domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(328).at n=4A041618a(n) = 18*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 18.at n=5A090307a(n) = n^5 + 5*n^3 + 5*n.at n=18A261391