login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164100 Number of planar graphs with n nodes and chromatic number 3. 0
1, 3, 16, 82, 524, 4372, 47057, 618235, 9289491 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..11.

CROSSREFS

Sequence in context: A020871 A037780 A163012 * A041707 A037584 A030983

Adjacent sequences:  A164097 A164098 A164099 * A164101 A164102 A164103

KEYWORD

nonn

AUTHOR

Keith Briggs, Aug 10 2009

EXTENSIONS

Added term 9289491 (for n=11), Keith Briggs, Aug 25 2009

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 26 20:34 EDT 2021. Contains 347672 sequences. (Running on oeis4.)