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A046725 Number of semi-meanders of order n with 6 components. 2


%S 1,6,32,152,690,3028,12996,54812,228284,939148,3833076,15487428,

%T 62244564,247973928,984221764,3876113404,15223550024,59379645924,

%U 231124139318,894157177372,3453279084296,13266154255196,50886266714598,194294744477756,740816697816046

%N Number of semi-meanders of order n with 6 components.

%H Andrew Howroyd, <a href="/A046725/b046725.txt">Table of n, a(n) for n = 6..40</a>

%H P. Di Francesco, O. Golinelli and E. Guitter, <a href="http://arXiv.org/abs/hep-th/9506030">Meander, folding and arch statistics</a>, arXiv:hep-th/9506030, 1995.

%Y Cf. A000682, A046726.

%K nonn

%O 6,2

%A _N. J. A. Sloane_.

%E a(15)-a(40) from _Andrew Howroyd_, Dec 07 2015

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Last modified May 30 08:46 EDT 2017. Contains 287302 sequences.