%I #3 Aug 15 2019 00:43:31
%S 1,3,16,82,524,4372,47057,618235,9289491
%N Number of planar graphs with n nodes and chromatic number 3.
%K nonn
%O 3,2
%A _Keith Briggs_, Aug 10 2009
%E Added term 9289491 (for n=11), _Keith Briggs_, Aug 25 2009
