Search: id:A030223
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%I A030223
%S A030223 1,1,1,2,2,5,5,12,13,30,36,80,97,213,266,578,737,1589,2051,4408,5747,
%T A030223 12333,16213,34737,45979,98367,131007,279902
%N A030223 Triangular polyominoes (n-iamonds) with bilateral symmetry (holes are 
               allowed).
%Y A030223 Cf. A000577, A006534, A030223, A030224.
%Y A030223 Sequence in context: A002014 A135153 A097896 this_sequence A056504 A122205 
               A094967
%Y A030223 Adjacent sequences: A030220 A030221 A030222 this_sequence A030224 A030225 
               A030226
%K A030223 nonn
%O A030223 1,4
%A A030223 David W. Wilson (davidwwilson(AT)comcast.net)
%E A030223 a(19) to a(28) from Joseph Myers (jsm(AT)polyomino.org.uk), Sep 24 2002

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