%I A024500
%S A024500 2,1,2,4,10,25,70,201,600,1847,5830,18778,61542,204676,689411,2347970,
%T A024500 8074762,28009676,97909318,344616322,1220539397,4347311908,15564141262,
%U A024500 55985423060,202256970300,733607297260,2670698800614,9755982909133
%N A024500 a(n) = [ C(2n,n)/n^2 ].
%Y A024500 Sequence in context: A135547 A146307 A063894 this_sequence A000087 A145667 
               A095067
%Y A024500 Adjacent sequences: A024497 A024498 A024499 this_sequence A024501 A024502 
               A024503
%K A024500 nonn
%O A024500 1,1
%A A024500 Clark Kimberling (ck6(AT)evansville.edu)