%I #12 Nov 22 2015 17:00:50
%S 1,3,15,97,733,6147,55541,530773,5298723,54780831,582817337,
%T 6350647873,70614662303,798935833885,9176290300419,106793746090045,
%U 1257408517909283,14958873368871405,179614516459970349,2174717049372338913
%N Number of forest meanders with 2n crossings.
%C A forest meander system is a meander system that does not have any components which are entirely enclosed by another. - _Andrew Howroyd_, Nov 22 2015
%H R. Bacher, <a href="http://www-fourier.ujf-grenoble.fr/sites/default/files/ref_478.pdf">Meander algebras</a>
%Y Meander sequences in Bacher's paper: A005315, A060066, A060089, A060111, A060148, A060149, A060174, A060198, A060206.
%K nonn,nice
%O 1,2
%A _N. J. A. Sloane_, Apr 10 2001
%E More terms from _Sascha Kurz_, Mar 25 2002
%E a(15)-a(20) from _Andrew Howroyd_, Nov 22 2015