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A035761
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Coordination sequence for C_24 lattice.
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1
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1, 1152, 221952, 17282432, 733189632, 19804348032, 375282559232, 5332713820032, 59660218248192, 545370276747392, 4193961783144192, 27773897706129792, 161439727075246592, 836741699281154688, 3918338381384594688, 16763693723937678208, 66145673666689456128
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OFFSET
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0,2
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LINKS
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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))^24.
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CROSSREFS
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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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STATUS
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approved
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