%I #3 Mar 30 2012 18:56:00
%S 1,1,7,13,19,61,145,301,745,1729,4915,11737,28675,73945,200545,513265,
%T 1272385,3303745,8918911,23137501,59225587,155387413,420267097,
%U 1104554845,2876555737,7574538529,20668692859,54731279065,143892912259,383051857489
%N a(n) = s(n+3)/6, where s is A024953.
%K nonn
%O 1,3
%A _Clark Kimberling_
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