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A151520
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Number of 1-sided strip polytans with n cells.
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1
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1, 4, 6, 21, 47, 134, 323, 876, 2224, 5885, 15146, 39574, 102250, 265574, 686208, 1775646, 4583718, 11835037, 30515520, 78652647
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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Eric Weisstein's World of Mathematics, Polytan
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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