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A151541
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Number of 2-sided triangular strip polyedges with n cells.
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15
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1, 3, 8, 32, 123, 523, 2201, 9443, 40341, 172649, 736926, 3141607, 13367012
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OFFSET
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1,2
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COMMENTS
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Also number of unrooted self-avoiding walks of n steps on hexagonal [ =triangular ] lattice. - Hugo Pfoertner, Jun 23 2018
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LINKS
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Eric Weisstein's World of Mathematics, Polyedge
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CROSSREFS
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Asymptotically approaches (1/24)*A001334(n) for increasing n.
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KEYWORD
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nonn,walk,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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