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Number of set partitions of [n] having exactly nine pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.
2

%I #4 Apr 15 2016 10:42:04

%S 0,1,55,1505,29324,470327,6695470,88385973,1111798442,13564841773,

%T 162467818939,1926323411088,22746380908378,268674567620291,

%U 3184862187668777,37981401796219812,456537084216273054,5538881542974933954,67901571491109849536,841799517686212572527

%N Number of set partitions of [n] having exactly nine pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.

%H Alois P. Heinz, <a href="/A271796/b271796.txt">Table of n, a(n) for n = 9..300</a>

%Y Column k=9 of A185982.

%K nonn

%O 9,3

%A _Alois P. Heinz_, Apr 14 2016