A070766 - OEIS

A070766

Number of polyhexes with n cells that tile the plane.

1, 1, 3, 7, 22, 77, 294, 1054, 3788, 11326, 24790, 103641, 164559, 532510, 1574252, 2939898, 4761009, 21048218, 24306306, 95707819, 205176450

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OFFSET

1,3

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

Table of n, a(n) for n=1..21.

Joseph Myers, Polyhex tiling

CROSSREFS

Cf. A000228-A070767, A018190-A070768, cf. A054359.

Sequence in context: A354771 A075214 A360887 * A111772 A233005 A018190

Adjacent sequences: A070763 A070764 A070765 * A070767 A070768 A070769

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 17 2010

STATUS

approved