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Search: id:A006782
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| A006782 |
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Number of polygons of length 4n on L-lattice.
(Formerly M1930)
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+0
1
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| 1, 0, 1, 2, 9, 36, 154, 684, 3128, 14666, 70258, 342766
(list; graph; listen)
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OFFSET
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1,4
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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).
I. G. Enting and A. J. Guttmann, Self-avoiding polygons on the square, L and Manhattan lattices, J. Phys. A 18 (1985), 1007-1017.
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CROSSREFS
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Sequence in context: A052834 A150967 A121769 this_sequence A150968 A073156 A150969
Adjacent sequences: A006779 A006780 A006781 this_sequence A006783 A006784 A006785
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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