%I #5 Mar 30 2012 18:56:51
%S 1,2,3,5,9,18,32,63,124,245,490,964,1923,3835,7652,15304,30504,60973,
%T 121866,243596,487192,973568,1946851,3893037,7784919,15569838,
%U 31132592,62262654,124519328,249028126,498056252,996046984,1992070217
%N Sum{T(i,n-i): i=0,1,...,n}, array T as in A047030.
%K nonn
%O 0,2
%A _Clark Kimberling_