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

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; 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.

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: A019286 A064767 A115222 * A075920 A181202 A076006

Adjacent sequences:  A035824 A035825 A035826 * A035828 A035829 A035830

KEYWORD

nonn

AUTHOR

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 04:44 EST 2012. Contains 205983 sequences.