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A244201 Number of ballot sequences of length n having largest descent 5. 2

%I

%S 1,8,57,325,1836,9631,50459,259265,1338386,6883858,35691600,185658393,

%T 974581172,5149247182,27453098035,147525812345,799938674416,

%U 4374257134597,24132381990803,134269599147480,753508935023296,4263986330460375,24330201998999324

%N Number of ballot sequences of length n having largest descent 5.

%C Also number of ballot sequences of length n having largest ascent 5.

%Y Column k=5 of A238128 and of A238129.

%K nonn

%O 7,2

%A _Joerg Arndt_ and _Alois P. Heinz_, Jun 22 2014

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Last modified May 25 20:58 EDT 2020. Contains 334597 sequences. (Running on oeis4.)