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A035828
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Coordination sequence for lattice D*_86 (with edges defined by l_1 norm = 1).
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0
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1, 172, 14792, 848132, 36477072, 1255320156, 36010162520, 885717793460, 19069940181280, 365136637303820, 6295606113770728, 98739134664027236, 1420507268612532656, 18877952360204608956, 233146706655610223736
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history;
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internal format)
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OFFSET
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0,2
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REFERENCES
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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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Table of n, a(n) for n=0..14.
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FORMULA
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a(m)=add(2^k*binomial(n, k)*binomial(m-1, k-1), k=0..n)+2^n*binomial((n+2*m)/2-1, n-1); with n=86.
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CROSSREFS
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Sequence in context: A250968 A264213 A250340 * A259017 A097845 A261530
Adjacent sequences: A035825 A035826 A035827 * A035829 A035830 A035831
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, J. Serra-Sagrista (jserra(AT)ccd.uab.es)
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STATUS
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approved
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