A270964 - OEIS

%I #5 Mar 27 2016 14:30:47

%S 1,281,13297,348523,6807872,113042841,1709159987,24469725009,

%T 339634663517,4638106688642,62916588549562,853199404241913,

%U 11616795214297568,159290998975659690,2204454156023259166,30838108887627521579,436552647970998600862,6258905749718943712307

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

%H Alois P. Heinz, <a href="/A270964/b270964.txt">Table of n, a(n) for n = 15..220</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a>

%Y Column k=10 of A270953.

%K nonn

%O 15,2

%A _Alois P. Heinz_, Mar 26 2016