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%I #3 Mar 30 2012 18:59:07
%S 1,1,2,3,5,9,16,30,54,104,191,372,692,1357,2550,5021,9508,18773,35766,
%T 70755,135461,268365,515849,1023092,1973159,3916831,7575470,15048428,
%U 29175431,57990158,112665488,224048847,436089113,867581269,1691392152
%N Diagonal sums of number array A107249.
%F a(n)=sum{k=0..floor(n/2), C(floor((2n-3k-2)/2), floor((n-2k)/2))}
%K easy,nonn
%O 0,3
%A _Paul Barry_, May 14 2005
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