18184domain: NAppears in sequencesNumber of partitions of n with zero crank.at n=54A064410a(n) = 3*a(n-1) + 2*a(n-2) + a(n-3) if n>=3, otherwise a(n) = n.at n=9A100477Number of polytets with n cells, distinguishing mirror images.at n=9A276272