%I A037185
%S A037185 0,0,0,0,3,4,11,40,41,132,122,524,407,1284,3681,5683,6800,18853
%N A037185 Number of ways of placing 2n points on n X n grid so no 3 are in a line 
               (solutions with no symmetry).
%D A037185 A. Flammenkamp, Progress in the no-three-in-line problem, J. Combinat. 
               Theory A 60 (1992), 305-311.
%D A037185 A. Flammenkamp, Progress in the no-three-in-line problem. II. J. Combin. 
               Theory Ser. A 81 (1998), no. 1, 108-113.
%H A037185 Benjamin Chaffin, <a href="http://wso.williams.edu/~bchaffin/no_three_in_line/
               index.htm">No-Three-In-Line Problem</a>.
%H A037185 A. Flammenkamp, <a href="http://wwwhomes.uni-bielefeld.de/achim/no3in/
               table_old.txt">Solutions of the no-three-in-line problem</a>
%H A037185 A. Flammenkamp, <a href="http://wwwhomes.uni-bielefeld.de/achim/no3in/
               table.txt">Solutions of the no-three-in-line problem</a>
%Y A037185 Cf. A000769, A000755.
%Y A037185 Sequence in context: A038559 A119042 A042273 this_sequence A101982 A041947 
               A102013
%Y A037185 Adjacent sequences: A037182 A037183 A037184 this_sequence A037186 A037187 
               A037188
%K A037185 nonn
%O A037185 1,5
%A A037185 N. J. A. Sloane (njas(AT)research.att.com).
%E A037185 a(17) and a(18) from Benjamin Chaffin (chaffin(AT)gmail.com), Apr 05 
               2006