%I #13 Feb 20 2018 07:28:19
%S 1,4,15,56,207,764,2805,10288,37609,137380,500655,1823440,6629423,
%T 24090332,87418221,317085352,1148825185,4160744164,15054719697,
%U 54454345624,196805925995,711077858188,2567375653681,9267176552040
%N Dimensions of graded algebra associated with meanders.
%H B. Bobier and J. Sawada, <a href="/A060111/b060111.txt">Table of n, a(n) for n = 0..28</a> [from preprint above]
%H R. Bacher, <a href="https://www-fourier.ujf-grenoble.fr/sites/default/files/ref_478.pdf">Meander algebras</a>, Institut Fourier, UMR 5582, Laboratoire de Mathématiques, 1999.
%H B. Bobier and J. Sawada, <a href="http://www.cis.uoguelph.ca/~sawada/papers/meander.pdf">A fast algorithm to generate open meandric systems and meanders</a>, Transactions on Algorithms, Vol. 6 No. 2 (2010) article #42, 12 pages.
%Y Meander sequences in Bacher's paper: A005315, A060066, A060089, A060111, A060148, A060149, A060174, A060198, A060206.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Apr 10 2001
%E More terms from Larry Reeves (larryr(AT)acm.org), Apr 26 2001