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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A078997 Nonzero coefficients of the polynomials in the denominator of the generating function x/(1-x-x^2) for the Fibonacci sequence and its successive derivatives starting with the highest power of x. 0
-1, -1, 1, 1, 2, -1, -2, 1, 1, 3, -5, 3, -1, 1, 4, 2, -8, -5, 8, 2, -4, 1, 1, 5, 5, -10, -15, 11, 15, -10, -5, 5, -1, 1, 6, 9, -10, -30, 6, 41, -6, -30, 10, 9, -6, 1, 1, 7, 14, -7, -49, -14, 77, 29, -77, -14, 49, -7, -14, 7, -1, 1, 8, 20, -70, -56, 112, 120, -125, -120, 112, 56, -70, 20, -8, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..75.

FORMULA

f(x)^(n), for n=0, 1, 2, 3, 4, . . ., where f(x)= x/(1-x-x^2)

EXAMPLE

The nonzero coefficients of the first 3 polynomials in the denominator starting with the highest power of x: -1,-1,1; 1,2,-1,-2,1; 1,3,-5,3,-1; ...

CROSSREFS

Sequence in context: A205810 A139368 A134303 * A024680 A083531 A003417

Adjacent sequences:  A078994 A078995 A078996 * A078998 A078999 A079000

KEYWORD

sign,tabf,less

AUTHOR

Mohammad K. Azarian, Jan 12 2003

STATUS

approved

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

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

Last modified December 18 04:30 EST 2014. Contains 252079 sequences.