login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A060148 Number of forest meanders with 2n crossings. 8
1, 3, 15, 97, 733, 6147, 55541, 530773, 5298723, 54780831, 582817337, 6350647873, 70614662303, 798935833885, 9176290300419, 106793746090045, 1257408517909283, 14958873368871405, 179614516459970349, 2174717049372338913 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
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
LINKS
R. Bacher, Meander algebras
CROSSREFS
Meander sequences in Bacher's paper: A005315, A060066, A060089, A060111, A060148, A060149, A060174, A060198, A060206.
Sequence in context: A262751 A231445 A108442 * A143435 A331325 A132437
KEYWORD
nonn,nice
AUTHOR
N. J. A. Sloane, Apr 10 2001
EXTENSIONS
More terms from Sascha Kurz, Mar 25 2002
a(15)-a(20) from Andrew Howroyd, Nov 22 2015
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)