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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112525 Expansion of 1/(1-100x^2-100x^3). 0
1, 0, 100, 100, 10000, 20000, 1010000, 3000000, 103000000, 401000000, 10600000000, 50400000000, 1100100000000, 6100000000000, 115050000000000, 720010000000000, 12115000000000000, 83506000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

Index entries for linear recurrences with constant coefficients, signature (0,100,100).

FORMULA

a(n)=sum{k=0..floor(n/2), C((n-k)/2, k)*10^(n-k)*(1+(-1)^(n-k))/2}

CROSSREFS

Sequence in context: A096582 A220023 A115048 * A000865 A135600 A134999

Adjacent sequences:  A112522 A112523 A112524 * A112526 A112527 A112528

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Sep 09 2005

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 April 18 12:27 EDT 2019. Contains 322209 sequences. (Running on oeis4.)