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A035475
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Coordination sequence for lattice D*_12 (with edges defined by l_1 norm = 1).
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0
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1, 24, 288, 2312, 14016, 68664, 288096, 1071912, 3600768, 11036504, 31125408, 81412680, 199013440, 457923960, 998269920, 2073758312, 4126016256, 7897561752, 14598964768, 26150436744, 45523755456
(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=12.
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CROSSREFS
| Sequence in context: A001496 A055754 A035707 * A042110 A086941 A187028
Adjacent sequences: A035472 A035473 A035474 * A035476 A035477 A035478
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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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