%I #7 Mar 23 2013 15:11:24
%S 0,0,0,0,0,0,18,50,88,156,260,392,555,848,1088
%N Number of tetragonal regions in the exterior of a regular n-gon with all diagonals drawn.
%Y Cf. A067151, A217746.
%K nonn
%O 3,7
%A _Martin Renner_, Mar 23 2013