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A070767 Number of polyhexes with n cells that do not tile the plane. 3
0, 0, 0, 0, 0, 5, 39, 394, 2784, 19164, 118762, 579460, 3110267, 15264387, 75007623, 369928203, 1817475619, 8913862144, 43914857957, 216555328193, 1070588132492 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
REFERENCES
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.
LINKS
Joseph Myers, Polyhex tiling
CROSSREFS
Sequence in context: A182954 A215506 A316654 * A124549 A308939 A317618
KEYWORD
hard,nonn
AUTHOR
Joseph Myers, May 05 2002
EXTENSIONS
More terms from Joseph Myers, Nov 06 2003
a(20) and a(21) from Joseph Myers, Nov 21 2010
STATUS
approved

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Last modified March 28 11:46 EDT 2024. Contains 371241 sequences. (Running on oeis4.)