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A005397
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Number of n-step polygons on Kagome lattice.
(Formerly M3186)
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0
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4, 0, 0, 4, 28, 80, 120, 120, 264, 1080, 3120
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,1
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REFERENCES
| M. E. Fisher and M. F. Sykes, Excluded-volume problem and the Ising model of ferromagnetism, Phys. Rev. 114 (1959), 45-58.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A096406 A189885 A151673 * A021718 A193108 A063730
Adjacent sequences: A005394 A005395 A005396 * A005398 A005399 A005400
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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