Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A048816
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A048816 Number of rooted trees with n nodes with every leaf at the same height. +0
9
1, 1, 2, 3, 5, 7, 12, 17, 28, 42, 68, 103, 168, 260, 420, 665, 1075, 1716, 2787, 4489, 7304, 11849, 19333, 31504, 51561, 84347, 138378, 227096, 373445, 614441, 1012583, 1669774, 2756951, 4555183, 7533988, 12469301, 20655523, 34238310 (list; graph; listen)
OFFSET

1,3

LINKS

Index entries for sequences related to rooted trees

CROSSREFS

Cf. A048808-A048815.

Sequence in context: A027959 A060730 A123569 this_sequence A080528 A002965 A091696

Adjacent sequences: A048813 A048814 A048815 this_sequence A048817 A048818 A048819

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Apr 15 1999.

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 November 27 14:50 EST 2009. Contains 167570 sequences.


AT&T Labs Research