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A005549
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Number of n-step self-avoiding walks on hexagonal lattice from (0,0) to (0,3).
(Formerly M4842)
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7
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1, 12, 54, 188, 636, 2168, 7556, 26826, 96724, 353390, 1305126, 4864450, 18272804, 69103526, 262871644, 1005137688, 3860909698, 14890903690, 57641869140, 223864731680, 872028568182, 3406103773674, 13337263822236
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OFFSET
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3,2
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COMMENTS
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The hexagonal lattice is the familiar 2-dimensional lattice in which each point has 6 neighbors. This is sometimes called the triangular lattice.
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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CROSSREFS
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KEYWORD
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nonn,walk,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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