%I A046112
%S A046112 1,5,25,125,65,3125,15625,325,390625,1953125,1625,48828125,4225,1105
%N A046112 a(n) is smallest integral radius of circle centered at (0,0) having 8n-4 
               lattice points on its circumference; a(n)/2 is smallest half-integral 
               radius circle centered at (1/2,0) having 4n-2 lattice points; a(n)/
               3 is smallest third-integral radius circle centered at (1/3,0) having 
               2n-1 lattice points.
%H A046112 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               CircleLatticePoints.html">Link to a section of The World of Mathematics.</
               a>
%H A046112 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PythagoreanTriple.html">Pythagorean Triple</a>
%Y A046112 Except for offset, same as A006339, which gives more terms.
%Y A046112 Cf. A046109, A046110, A046111, A000328.
%Y A046112 Sequence in context: A099504 A036156 A097756 this_sequence A006339 A032534 
               A036151
%Y A046112 Adjacent sequences: A046109 A046110 A046111 this_sequence A046113 A046114 
               A046115
%K A046112 nonn
%O A046112 1,2
%A A046112 Eric Weisstein (eric(AT)weisstein.com)