Search: id:A038119
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%I A038119 M1760
%S A038119 1,1,2,7,23,112,607,3811,25413,178083,1279537,9371094,69513546,
%T A038119 520878101,3934285874,29915913663
%N A038119 Number of n-celled solid polyominoes (or free polycubes, allowing mirror-image 
               identification).
%C A038119 A000162 but with one copy of each mirror-image deleted.
%D A038119 Computed by Achim Flammenkamp (achim(AT)uni-bielefeld.de)
%D A038119 S. W. Golomb, Polyominoes. Scribner's, NY, 1965; second edition (Polyominoes: 
               Puzzles, Packings, Problems and Patterns) Princeton Univ. Press, 
               1994.
%D A038119 W. F. Lunnon, Symmetry of cubical and general polyominoes, pp. 101-108 
               of R. C. Read, editor, Graph Theory and Computing. Academic Press, 
               NY, 1972.
%D A038119 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A038119 <a href="http://www.uni-bielefeld.de/~achim/">Home page of Achim Flammenkamp</
               a>
%H A038119 Kevin L. Gong, <a href="http://kevingong.com/Polyominoes/Enumeration.html">
               Polyominoes Home Page.</a>
%Y A038119 A038119 = (A007743+A000162)/2, A007743 = 2*A038119 - A000162, A000162 
               = 2*A038119 - A007743.
%Y A038119 Sequence in context: A150387 A150388 A073344 this_sequence A006986 A000903 
               A049021
%Y A038119 Adjacent sequences: A038116 A038117 A038118 this_sequence A038120 A038121 
               A038122
%K A038119 nonn,nice,hard
%O A038119 1,3
%A A038119 N. J. A. Sloane (njas(AT)research.att.com).
%E A038119 More terms from Brendan Owen (brendan_owen(AT)yahoo.com), Jan 02 2002
%E A038119 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007

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