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A151524
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Number of 2-sided strip polyrhombs with n cells.
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4
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1, 1, 3, 5, 12, 24, 58, 126, 300, 686, 1630, 3792, 8983, 21051, 49776, 116858, 275789, 647573, 1525847, 3580673, 8424978, 19755938, 46426810
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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LINKS
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Eric Weisstein's World of Mathematics, Polyrhomb
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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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