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Search: id:A121195
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| A121195 |
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Consider the tiling of the plane with squares of two different sizes as in Fig. 2.4.2(g) of Gruenbaum and Shephard, p. 74. a(n) is the number of connected figures that can be formed on this tiling, from n big squares and n small squares. |
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+0
4
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OFFSET
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1,2
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COMMENT
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The Zucca web site calls these figures "n-BiSquares".
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REFERENCES
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Branko Gruenbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987.
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LINKS
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Livio Zucca, PolyMultiForms
Livio Zucca, The 12 2-BiSquares (from the Zucca web site).
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CROSSREFS
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Cf. A121196, A121197, A121198.
Adjacent sequences: A121192 A121193 A121194 this_sequence A121196 A121197 A121198
Sequence in context: A015611 A127650 A103759 this_sequence A004356 A036360 A120657
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KEYWORD
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nonn,more
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AUTHOR
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njas, Aug 17 2006
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EXTENSIONS
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More terms from Don Reble (djr(AT)nk.ca), Aug 17 2007
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