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A035823
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Coordination sequence for lattice D*_76 (with edges defined by l_1 norm = 1).
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0
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1, 152, 11552, 585352, 22249152, 676725432, 17158543712, 373068895912, 7101177930112, 120221169738712, 1833042722372512, 25427680393479112, 323611487252712512, 3805280811287736312, 41591858654483462112
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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=76.
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CROSSREFS
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Sequence in context: A208492 A208485 A223397 * A208484 A157881 A099117
Adjacent sequences: A035820 A035821 A035822 * A035824 A035825 A035826
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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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