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A075207 Number of polyhexes with n cells that tile the plane by translation. 10
1, 1, 3, 6, 12, 36, 60, 209, 387, 1054, 1468, 6895, 7001, 23920, 49496, 126732, 146046, 638800, 647502, 2772935, 4162861 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
REFERENCES
Branko Grünbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Section 9.4.
LINKS
Joseph Myers, Polyhex tiling
CROSSREFS
Sequence in context: A033648 A102972 A075209 * A208131 A136121 A023369
KEYWORD
hard,nonn
AUTHOR
Joseph Myers, Sep 08 2002
EXTENSIONS
More terms from Joseph Myers, Nov 08 2003
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 05 2007
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)