The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A035827 Coordination sequence for lattice D*_84 (with edges defined by l_1 norm = 1). 0
 1, 168, 14112, 790328, 33200832, 1116022152, 31270754144, 751295258136, 15800653486464, 295529872503656, 4977542380850592, 76262444439584760, 1071822174138228800, 13915770164927528520, 167907946699820252640 (list; graph; refs; listen; history; text; internal format)
 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=84. CROSSREFS Sequence in context: A115222 A290152 A282586 * A075920 A181202 A076006 Adjacent sequences: A035824 A035825 A035826 * A035828 A035829 A035830 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 18 01:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)