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A035835 Coordination sequence for lattice D*_100 (with edges defined by l_1 norm = 1). 0
1, 200, 20000, 1333400, 66680000, 2668000040, 88977788000, 2544128228600, 63669939056000, 1416866300977800, 28388261970800800, 517309471897178200, 8645481416595304000, 133445129808456135400, 1913769409906455052000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

J. Serra-Sagrista, Enumeration of lattice points in l_1 norm, Information Processing Letters, 76, no. 1-2 (2000), 39-44.

LINKS

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

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=100.

CROSSREFS

Sequence in context: A232132 A278191 A248453 * A027825 A098963 A107843

Adjacent sequences:  A035832 A035833 A035834 * A035836 A035837 A035838

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified August 4 13:24 EDT 2020. Contains 336201 sequences. (Running on oeis4.)