A047001 - OEIS

%I #5 Mar 30 2012 18:56:51

%S 1,2,3,6,8,15,30,52,101,202,376,740,1480,2840,5625,11250,21928,43583,

%T 87166,171420,341412,682824,1350144,2692536,5385072,10684872,21326481,

%U 42652962,84825224,169403773,338807546,674852332,1348273949

%N Sum{T(i,n-i): i=0,1,...,n}, array T given by A047000.

%K nonn

%O 0,2

%A _Clark Kimberling_