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%I #4 Mar 30 2012 18:57:33
%S 0,1,4,24,129,759,4455,26763,161898,988438,6069228,37460952,232160184,
%T 1443830084,9005809184,56316652784,352949825249,2216334391919,
%U 13941409199519,87830683173419,554096566907069,3499981913717189,22132830286939649
%N (A192251)/2.
%C See A192232, A192251.
%t (See A192250.)
%Y Cf. A192232, A192251.
%K nonn
%O 1,3
%A _Clark Kimberling_, Jun 27 2011