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%I #4 Mar 30 2012 18:56:15
%S 1,2,4,13,26,100,196,820,1581,6954,13244,60214,113620,528840,990756,
%T 4692780,8741876,41970280,77824912,377687453,697689538,3415756084,
%U 6289798684,31018849628,56964451670,282658474700,517885177320
%N a(n) = self-convolution of row n of Catalan triangle (A008315).
%K nonn
%O 0,2
%A _Clark Kimberling_