%I M4921 #27 Jun 28 2017 15:17:16
%S 14,14,36,57,155,316,902,2053,6059,14810,44842,115009,355293,943860,
%T 2963536,8086913,25733325,71725012,230811370,654472364,2126296860,
%U 6115504594,20032488714,58309793101
%N Number of meanders in which first bridge is 7.
%D S. K. Lando and A. K. Zvonkin "Plane and projective meanders", Séries Formelles et Combinatoire Algébrique. Laboratoire Bordelais de Recherche Informatique, Université Bordeaux I, 1991, pp. 287-303.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H S. K. Lando and A. K. Zvonkin , <a href="/A005316/a005316_1.pdf">Plane and projective meanders</a>, Séries Formelles et Combinatoire Algébrique. Laboratoire Bordelais de Recherche Informatique, Université Bordeaux I, 1991, pp. 287-303. (Annotated scanned copy)
%Y Cf. A259974, A005316.
%K nonn
%O 7,1
%A _Simon Plouffe_
%E Offset corrected, terms a(19)-a(30) added, _Andrew Howroyd_, Dec 15 2015