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%I #3 Mar 30 2012 18:59:08
%S 1,2,3,6,15,42,131,432,1497,5420,20373,79422,319927,1328764,5677653,
%T 24904584,111961129,515029020,2421047613,11616330342,56829235095,
%U 283211069352,1436529522233,7410596379456,38852645340297
%N Row sums of number triangle A110180.
%F a(n)=sum{k=0..n, sum{j=0..floor((n-k)/2), C(n-k, j)C(n-k-j, j)k^j}}.
%K easy,nonn
%O 0,2
%A _Paul Barry_, Jul 14 2005
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