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A099949 Number of crossing partitions of n. 1

%I #9 Oct 13 2015 02:55:21

%S 1,5,20,84,388,1951,10529,60478,367953,2362503,15955673,113015123,

%T 837307541,6473306155,52110629576,435951806195,3783475965645,

%U 34007779661168,316120859847935,3034730002671251,30048957645720682,306529788241138211,3217941347005747296,34730178825735671711,384990885899299757336,4379518943963832643173,51083106730348426001558

%N Number of crossing partitions of n.

%H M. Klazar, <a href="http://dx.doi.org/10.1016/S0097-3165(03)00014-1">Bell numbers, their relatives and algebraic differential equations</a>, J. Combin. Theory, A 102 (2003), 63-87.

%K nonn,easy,nice

%O 4,2

%A _N. J. A. Sloane_, Nov 12 2004

%E More terms from _Vladeta Jovovic_, Jul 11 2007

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)