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%I #4 Jun 04 2014 18:10:15
%S 1,15,144,1115,7509,45864,261185,1412742,7350116,37106514,182907585,
%T 884290974,4207172844,19747711113,91627676418,420914259695,
%U 1916722429108,8660949017183,38866735108620,173341678278027,768774806179919,3392247359157876,14899045118613987
%N Number of Dyck paths of semilength n having exactly 6 (possibly overlapping) occurrences of the consecutive steps UDUUDU (with U=(1,1), D=(1,-1)).
%H Alois P. Heinz, <a href="/A243418/b243418.txt">Table of n, a(n) for n = 14..550</a>
%Y Column k=6 of A243366.
%K nonn
%O 14,2
%A _Alois P. Heinz_, Jun 04 2014