Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A066317
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A066317 Number of rooted identity (asymmetric) planar trees that can be turned over. +0
1
1, 1, 1, 1, 2, 6, 25, 92, 341, 1225, 4366, 15522, 55312, 197965, 712244, 2577106, 9375361, 34284972, 125977465, 464938190, 1722817416, 6407307544, 23909159418, 89491715106, 335908316845, 1264097675776, 4768430557021 (list; graph; listen)
OFFSET

1,5
LINKS

Index entries for sequences related to rooted trees

FORMULA

a(n)=A066316(n-1)+1.

CROSSREFS

Sequence in context: A073545 A103063 A030228 this_sequence A027104 A019048 A028302

Adjacent sequences: A066314 A066315 A066316 this_sequence A066318 A066319 A066320

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Dec 13 2001

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.