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A035825
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Coordination sequence for lattice D*_80 (with edges defined by l_1 norm = 1).
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0
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1, 160, 12800, 682720, 27315200, 874496032, 23338104320, 534067024480, 10698844067840, 190617057780640, 3058431999744512, 44642243043558880, 597778600580572160, 7395049289720822560, 85027230683021319680
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| 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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FORMULA
| 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=80.
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CROSSREFS
| Sequence in context: A189351 A168527 A185492 * A183769 A190937 A163056
Adjacent sequences: A035822 A035823 A035824 * A035826 A035827 A035828
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), J. Serra-Sagrista (jserra(AT)ccd.uab.es)
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