A035829 - OEIS

A035829

Coordination sequence for lattice D*_88 (with edges defined by l_1 norm = 1).

1, 176, 15488, 908688, 39990016, 1408193776, 41333677440, 1040252599760, 22916557452800, 448955097765680, 7919942966638208, 127086414364383248, 1870534029816486144, 25431687677362290544, 321315959969540069248

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..14.

Joan Serra-Sagrista, Enumeration of lattice points in l_1 norm, Inf. Proc. Lett. 76 (1-2) (2000) 39-44.

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=88.

CROSSREFS

Sequence in context: A083961 A158818 A229317 * A284073 A298250 A184293

Adjacent sequences: A035826 A035827 A035828 * A035830 A035831 A035832

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, J. Serra-Sagrista (jserra(AT)ccd.uab.es)

STATUS

approved