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Search: id:A070768
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| A070768 |
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Number of polyhexes with n cells without holes that do not tile the plane. |
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+0
4
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| 0, 0, 0, 0, 0, 4, 37, 381, 2717, 18760, 116439, 565943, 3033697, 14835067, 72633658, 356923880, 1746833634, 8532601529, 41868336466, 205618704167, 1012359995953
(list; graph; listen)
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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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Joseph Myers, Polyhex tiling
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CROSSREFS
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Cf. A018190, A070766, A070767, A038144, A054361.
Adjacent sequences: A070765 A070766 A070767 this_sequence A070769 A070770 A070771
Sequence in context: A025542 A133462 A123762 this_sequence A121080 A001518 A036245
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KEYWORD
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hard,nonn
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AUTHOR
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Joseph Myers (jsm(AT)polyomino.org.uk), May 05 2002
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EXTENSIONS
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More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 06 2003
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007
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