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A006194
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Number of n-node animals on f.c.c. lattice (invert A007199).
(Formerly M3555)
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0
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1, 4, 19, 98, 531, 2971, 16997, 98830, 581788, 3458249, 20718292, 124929233, 757421601, 4613459330, 28213402944, 173141766742, 1065820341078
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OFFSET
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1,2
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REFERENCES
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J.-G. Penaud, Arbres et Animaux. Ph.D. Dissertation, Université Bordeaux I, 1990.
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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Table of n, a(n) for n=1..17.
I. Dutour, Animaux dirigés et approximations de séries génératrices, Mémoire de DEA, 1992, Université Bordeaux I.
J.-G. Penaud, Arbres et Animaux, Ph.D. Dissertation, Université Bordeaux I, 1990, cover page and p. 76. (Annotated scanned copy)
Index entries for sequences related to f.c.c. lattice
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CROSSREFS
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Sequence in context: A083315 A301417 A025573 * A047099 A211855 A177249
Adjacent sequences: A006191 A006192 A006193 * A006195 A006196 A006197
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KEYWORD
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nonn
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AUTHOR
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Simon Plouffe and N. J. A. Sloane
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STATUS
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approved
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