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%I #3 Apr 28 2014 11:20:34
%S 1,3,17,69,322,1408,6440,29555,139005,662522,3228150,15994167,
%T 80849918,415684406,2177223330,11594426886,62826444538,345909306526,
%U 1935762918301,10999013559517,63460591709283,371497097807233,2206388300667674,13286470507994738
%N Number of standard Young tableaux with n cells and exactly five successions.
%C A succession is a pair of cells (v, v+1) lying in the same row.
%C Also number of ballot sequences having five flat steps.
%Y Column k=5 of A238125.
%K nonn
%O 6,2
%A _Joerg Arndt_ and _Alois P. Heinz_, Apr 28 2014
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