login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A035814 Coordination sequence for lattice D*_58 (with edges defined by l_1 norm = 1). 0
1, 116, 6728, 260188, 7548816, 175288644, 3393946328, 56367745324, 819877766944, 10611155020308, 123745300449128, 1313632295207420, 12801566604046000, 115340898562816740, 966654502323949560 (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=58.

CROSSREFS

Sequence in context: A202903 A193170 A296360 * A284377 A009617 A201728

Adjacent sequences:  A035811 A035812 A035813 * A035815 A035816 A035817

KEYWORD

nonn

AUTHOR

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

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 19 15:31 EDT 2019. Contains 327199 sequences. (Running on oeis4.)