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A006835
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Percolation series for directed square lattice.
(Formerly M2742)
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1
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1, 0, -1, -3, -8, -21, -56, -154, -434, -1252, -3675, -10954, -33044, -100676, -309569, -957424, -2987846, -9330274, -29522921, -92459524, -298142956, -922424269, -3098690837, -9042937179, -34187149573, -79544646085
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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REFERENCES
| K. De'Bell and J. W. Essam, Estimates of the site percolation probability exponents for some directed lattices, J. Phys. A 16 (1983), 3145-3147.
Iwan Jensen and Anthony J. Guttmann, Series Expansions of the Percolation Probability for Directed Square and Honeycomb Lattices, J. Phys. A 28 (1995), 4813-4833.
R. N. Onody and U. P. C. Neves, Series Expansion of the Directed Percolation Probability, J. Phys. A 25 (1992), 6609-6615.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| I. Jensen, Table of n, a(n) for n = 0..37 (from link below)
I. Jensen, More terms
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CROSSREFS
| Sequence in context: A085560 A094374 A008909 * A014318 A158495 A018037
Adjacent sequences: A006832 A006833 A006834 * A006836 A006837 A006838
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KEYWORD
| sign
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com) and Simon Plouffe (simon.plouffe(AT)gmail.com)
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