%I A076437
%S A076437 1,2,3,5,6,7,8,10,12,13,15,17,18
%N A076437 Square board sizes for which the lights out problem has a unique solution 
               (counting solutions differing only by rotation and reflection as 
               equivalent).
%D A076437 M. Anderson and T. Feil, Turning Lights Out with Linear Algebra, Mathematics 
               Magazine, 71 (1998), 300-303
%H A076437 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               LightsOutPuzzle.html">Lights Out Puzzle</a>
%Y A076437 Cf. A075463, A076436.
%Y A076437 Sequence in context: A059870 A145353 A013936 this_sequence A028790 A028748 
               A028783
%Y A076437 Adjacent sequences: A076434 A076435 A076436 this_sequence A076438 A076439 
               A076440
%K A076437 nonn,more
%O A076437 1,2
%A A076437 Eric Weisstein (eric(AT)weisstein.com), Oct 11, 2002