login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A007860 Maximal matchings in rooted plane trees on n nodes. 0
0, 1, 4, 12, 44, 175, 718, 3052, 13308, 59139, 266974, 1220879, 5643562, 26327769, 123793450 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

REFERENCES

M. Klazar, Twelve countings with rooted plane trees, European Journal of Combinatorics 18 (1997), 195-210; Addendum, 18 (1997), 739-740.

LINKS

Index entries for sequences related to rooted trees

CROSSREFS

Sequence in context: A149365 A000759 A076793 * A039740 A065143 A098543

Adjacent sequences:  A007857 A007858 A007859 * A007861 A007862 A007863

KEYWORD

nonn

AUTHOR

Martin Klazar (klazar(AT)kam.mff.cuni.cz)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

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

Last modified February 17 23:58 EST 2012. Contains 206085 sequences.