A006661 - OEIS

This site is supported by donations to The OEIS Foundation.

A006661

Number of meanders in which first bridge is 5.
(Formerly M2286)

3, 3, 7, 11, 28, 57, 155, 353, 1003, 2458, 7214, 18575, 55880, 149183 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`3,1`
	REFERENCES	`S. K. Lando and A. K. Zvonkin "Plane and projective meanders", S\'{e}ries Formelles et Combinatoire Alg\'{e}brique. Laboratoire Bordelais de Recherche Informatique, Universit\'{e} Bordeaux I, 1991, pp. 287-303.` `N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	LINKS	`Table of n, a(n) for n=3..16.`
	CROSSREFS	`Sequence in context: A082550 A036056 A161815 * A068626 A126698 A219211` `Adjacent sequences: A006658 A006659 A006660 * A006662 A006663 A006664`
	KEYWORD	`nonn`
	AUTHOR	`Simon Plouffe`
	STATUS	`approved`

Content is available under The OEIS End-User License Agreement .

Last modified May 20 02:57 EDT 2013. Contains 225446 sequences.