%I #6 Jun 15 2014 16:36:59
%S 1,3,11,44,186,819,3725,17402,83156,405116,2006696,10083578,51303146,
%T 263851841,1369807435,7170160392,37803475750,200584271466,
%U 1070306614530,5739790997296,30919312935436,167228980869678,907759276349466
%N T(2n+1,n+1), T given by A026769.
%p A026887 := proc(n)
%p A026769(2*n+1,n+1) ;
%p end proc: # _R. J. Mathar_, Jun 15 2014
%K nonn
%O 0,2
%A _Clark Kimberling_