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%I #10 Aug 14 2018 09:02:09
%S 1,2,3,5,7,13,11,19,17,37,31,29,23,47,43,41,59,61,53,97,67,71,73,79,
%T 103,89,83,109,101,107,137,139,127,131,113,181,173,167,157,149,151,
%U 163,227,229,193,191,197,199,211,223,311,239,233,241,251,257,263,269
%N Squares visited by queen moves on a spirally numbered board, always moving to the lowest available unvisited prime square at each step.
%C Board is numbered with the square spiral:
%C .
%C 17--16--15--14--13
%C | |
%C 18 5---4---3 12 .
%C | | | |
%C 19 6 1---2 11 .
%C | | |
%C 20 7---8---9--10 .
%C |
%C 21--22--23--24--25--26
%H Daniël Karssen, <a href="/A316885/b316885.txt">Table of n, a(n) for n = 1..100</a>
%H Daniël Karssen, <a href="/A316885/a316885.svg">Figure showing the first 35 steps of the sequence</a>
%K nonn
%O 1,2
%A _Daniël Karssen_, Jul 15 2018
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