Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A135341
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A135341 Number of unlabeled toroidal cores having n vertices. +0
1
1, 0, 0, 2, 1, 1, 0, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 2, 2, 3, 3, 4, 2, 4, 4, 5, 4, 5, 6, 9, 6, 8, 8, 12, 11, 12, 12, 18, 18, 21, 18, 26, 28, 33, 32, 40, 44, 57, 53, 65, 70, 89, 93, 106, 115, 147, 158, 184 (list; graph; listen)
OFFSET

5,4

REFERENCES

Andrei Gagarin, Gilbert Labelle and Pierre Leroux, Counting unlabeled toroidal graphs with no K_{3,3}-subdivisions, arXiv:math/0509004.

CROSSREFS

Adjacent sequences: A135338 A135339 A135340 this_sequence A135342 A135343 A135344

Sequence in context: A085737 A005090 A073490 this_sequence A033665 A104234 A037870

KEYWORD

nonn

AUTHOR

njas, Dec 07 2007

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 May 16 01:24 EDT 2008. Contains 139630 sequences.


AT&T Labs Research