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A070767
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Number of polyhexes with n cells that do not tile the plane.
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3
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0, 0, 0, 0, 0, 5, 39, 394, 2784, 19164, 118762, 579460, 3110267, 15264387, 75007623, 369928203, 1817475619, 8913862144, 43914857957, 216555328193, 1070588132492
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,6
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REFERENCES
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M. Gardner, Tiling with Polyominoes, Polyiamonds and Polyhexes. Chap. 14 in Time Travel and Other Mathematical Bewilderments. New York: W. H. Freeman, pp. 175-187, 1988.
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LINKS
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CROSSREFS
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KEYWORD
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hard,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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