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A164101
Number of planar graphs with n nodes and chromatic number 4.
0
1, 4, 26, 214, 2320, 31858, 518697, 9372645
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OFFSET
4,2
LINKS
Table of n, a(n) for n=4..11.
CROSSREFS
Sequence in context:
A349719
A283828
A306028
*
A048351
A224734
A143436
Adjacent sequences:
A164098
A164099
A164100
*
A164102
A164103
A164104
KEYWORD
nonn
AUTHOR
Keith Briggs
, Aug 10 2009
EXTENSIONS
Added term 9372645 (for n=11),
Keith Briggs
, Aug 25 2009
STATUS
approved
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Last modified September 4 12:44 EDT 2024. Contains 375683 sequences. (Running on oeis4.)