login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A070766 Number of polyhexes with n cells that tile the plane. 12
1, 1, 3, 7, 22, 77, 294, 1054, 3788, 11326, 24790, 103641, 164559, 532510, 1574252, 2939898, 4761009, 21048218, 24306306, 95707819, 205176450 (list; graph; refs; listen; history; text; internal format)
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: A259809 A181769 A075214 * 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 17 11:02 EST 2019. Contains 329226 sequences. (Running on oeis4.)