%I A030225
%S A030225 1,1,3,4,11,17,46,75,202,341,914,1581,4222,7436,19794,35357,93859,
%T A030225 169558,449039,818793
%N A030225 Number of n-celled polyhexes (hexagonal polyominoes) with bilateral symmetry.
%Y A030225 A030225 = 2*A000228 - A006535.
%Y A030225 Sequence in context: A026753 A027222 A026380 this_sequence A060285 A025079 
               A036652
%Y A030225 Adjacent sequences: A030222 A030223 A030224 this_sequence A030226 A030227 
               A030228
%K A030225 nonn
%O A030225 1,3
%A A030225 David W. Wilson (davidwwilson(AT)comcast.net)
%E A030225 More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Sep 21 2002