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A257589 (2n+1)^2*Catalan(n) 0

%I

%S 1,9,50,245,1134,5082,22308,96525,413270,1755182,7407036,31097794,

%T 130007500,541574100,2249204040,9316746045,38504502630,158814867750,

%U 653887380300,2688007311990,11034286426020,45238127719980,185252191371000

%N (2n+1)^2*Catalan(n)

%H G.-S. Cheon, H. Kim, L. W. Shapiro, <a href="http://arxiv.org/abs/1410.1249">Mutation effects in ordered trees</a>, arXiv preprint arXiv:1410.1249, 2014 (see page 10).

%t Table[(2n+1)^2 CatalanNumber[n],{n,0,30}] (* _Harvey P. Dale_, Sep 02 2015 *)

%Y Cf. A000108.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, May 10 2015

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Last modified May 21 01:01 EDT 2019. Contains 323429 sequences. (Running on oeis4.)