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%I #4 Mar 30 2012 18:56:06
%S 1,3,20,147,1143,9163,74919,621015,5199909,43878315,372530781,
%T 3178551148,27231924300,234113134518,2018601251793,17449264269081,
%U 151169392399773
%N a(n) = T(3n,n), where T is the array in A026300.
%K nonn
%O 0,2
%A _Clark Kimberling_
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