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A093877
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Number of fixed n-celled polyzebras (or zebra-move-connected polyominoes).
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4
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1, 4, 28, 234, 2162, 21272, 218740, 2323730, 25314097, 281299736, 3176220308, 36332751862, 420086210688
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OFFSET
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1,2
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COMMENTS
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A polyzebra is a (2,3) leaper. A polyzebra need not be connected in the usual edge-connected sense.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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Guenter Stertenbrink (Sterten(AT)aol.com), May 21 2004
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EXTENSIONS
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a(12) (computed by Gadi Aleksandrowicz's program) by Gill Barequet, Jun 09 2011
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STATUS
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approved
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