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A035751
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Coordination sequence for C_14 lattice.
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1
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1, 392, 25872, 703640, 10746400, 108568488, 803467056, 4666890936, 22345512000, 91437047240, 328578611536, 1058868074712, 3110749728352, 8440960351208, 21380213588848, 50989319763704, 115318214551680, 248806698957320, 514705956670864, 1025296826430744, 1973911289979552
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listen;
history;
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OFFSET
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0,2
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REFERENCES
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R. Bacher, P. de la Harpe and B. Venkov, Series de croissance et series d'Ehrhart associees aux reseaux de racines, C. R. Acad. Sci. Paris, 325 (Series 1) (1997), 1137-1142.
J. Serra-Sagrista, Enumeration of lattice points in l_1 norm, Information Processing Letters, 76, no. 1-2 (2000), 39-44.
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LINKS
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Seiichi Manyama, Table of n, a(n) for n = 0..10000
J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (pdf).
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FORMULA
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a(n) = [x^(2n)] ((1+x)/(1-x))^14.
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CROSSREFS
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Sequence in context: A180295 A166988 A264311 * A107547 A068276 A068288
Adjacent sequences: A035748 A035749 A035750 * A035752 A035753 A035754
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KEYWORD
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nonn,easy
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AUTHOR
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Joan Serra-Sagrista (jserra(AT)ccd.uab.es)
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EXTENSIONS
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Recomputed by N. J. A. Sloane, Nov 25 1998
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STATUS
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approved
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