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A054361
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Number of polyominoes with n cells without holes that do not tile the plane.
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4
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0, 0, 0, 0, 0, 0, 3, 20, 198, 1390, 9474, 35488, 178448, 696371, 2721544, 10683110, 41334494, 155723774, 596182769, 2257379379, 8587521496, 32688629235, 124568505590, 475147925759, 1815832051949
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,7
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REFERENCES
| Posting by Glenn C. Rhoads (rhoads(AT)paul.rutgers.edu) to rec.puzzles, Feb 17 2000.
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LINKS
| Joseph Myers, Polyomino tiling
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EXAMPLE
| a(7) = 3.
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CROSSREFS
| Cf. A000104, A054360.
Sequence in context: A120485 A087152 A158833 * A052595 A052590 A081209
Adjacent sequences: A054358 A054359 A054360 * A054362 A054363 A054364
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KEYWORD
| nonn,hard
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AUTHOR
| Joe Keane (jgk(AT)jgk.org)
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EXTENSIONS
| Corrected and extended by Joseph Myers (jsm(AT)polyomino.org.uk), May 05 2002
More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 04 2003
a(24) and a(25) from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 17 2010
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