|
Search: id:A070768
|
|
|
| A070768 |
|
Number of polyhexes with n cells without holes that do not tile the plane. |
|
+0
4
|
|
| 0, 0, 0, 0, 0, 4, 37, 381, 2717, 18760, 116439, 565943, 3033697, 14835067, 72633658, 356923880, 1746833634, 8532601529, 41868336466, 205618704167, 1012359995953
(list; graph; listen)
|
|
|
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
|
Cf. A018190, A070766, A070767, A038144, A054361.
Sequence in context: A162649 A133462 A123762 this_sequence A121080 A001518 A036245
Adjacent sequences: A070765 A070766 A070767 this_sequence A070769 A070770 A070771
|
|
KEYWORD
|
hard,nonn
|
|
AUTHOR
|
Joseph Myers (jsm(AT)polyomino.org.uk), May 05 2002
|
|
EXTENSIONS
|
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
|
|
|
Search completed in 0.002 seconds
|
