Search: id:A037186
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%I A037186
%S A037186 0,0,0,0,2,0,1,5,3,3,6,3,9,5,13,14,12,14,16,17,13,18,34,43,55
%N A037186 Number of ways of placing 2n points on n X n grid so no 3 are in a line 
               (solutions with symmetry about one main diagonal).
%D A037186 A. Flammenkamp, Progress in the no-three-in-line problem, J. Combinat. 
               Theory A 60 (1992), 305-311.
%D A037186 A. Flammenkamp, Progress in the no-three-in-line problem. II. J. Combin. 
               Theory Ser. A 81 (1998), no. 1, 108-113.
%H A037186 A. Flammenkamp, <a href="http://wwwhomes.uni-bielefeld.de/achim/no3in/
               table.txt">Solutions of the no-three-in-line problem</a>
%Y A037186 Cf. A000769.
%Y A037186 Sequence in context: A079134 A163940 A112340 this_sequence A004483 A085650 
               A109450
%Y A037186 Adjacent sequences: A037183 A037184 A037185 this_sequence A037187 A037188 
               A037189
%K A037186 nonn
%O A037186 1,5
%A A037186 N. J. A. Sloane (njas(AT)research.att.com).

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