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A120379 Number of partitions of the Catalan number binomial(2n,n)/(n+1). 1

%I #21 Dec 18 2017 03:07:22

%S 1,1,2,7,135,53174,6620830889,39020148000237259665,

%T 133523474368721196662101633251149823925,

%U 14042421942608880253531745690954970851431472263832971258973477309202081861

%N Number of partitions of the Catalan number binomial(2n,n)/(n+1).

%H Michael De Vlieger, <a href="/A120379/b120379.txt">Table of n, a(n) for n = 0..13</a>

%H Henry Bottomley, <a href="http://www.se16.info/js/partitions.htm">Partition and composition calculator using a Java applet</a>

%H G. P. Michon, <a href="http://numericana.com/data/partition.htm">Partition Function</a>

%e a(3)=7 because binomial(6,3)/4 = 5 and the number of partitions of 5 is 7.

%p with(combinat): seq(numbpart(binomial(2*n,n)/(n+1)),n=0..8); # _Emeric Deutsch_, Jul 23 2006

%t Array[PartitionsP@ CatalanNumber@ # &, 10, 0] (* _Michael De Vlieger_, Dec 17 2017 *)

%o (MuPAD) combinat::partitions::count(binomial(2*n,n)/(n+1)) $n=0..10 // _Zerinvary Lajos_, Apr 16 2007

%Y Cf. A003107, A000108.

%K nonn

%O 0,3

%A _Zerinvary Lajos_, Jun 28 2006

%E Edited by _Emeric Deutsch_, Jul 23 2006

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)