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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A083909 Numbers of the form 10^(m-k)*(10^(m+k+1)-10^k), m, k >= 0. 0
9, 990, 99900, 9999000, 999990000, 99999900000, 9999999000000, 999999990000000, 99999999900000000, 9999999999000000000, 999999999990000000000, 99999999999900000000000, 9999999999999000000000000, 999999999999990000000000000, 99999999999999900000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

MATHEMATICA

Table[FromDigits[Join[PadRight[{}, n, 9], PadRight[{}, n-1, 0]]], {n, 15}] (* Harvey P. Dale, Jul 25 2016 *)

CROSSREFS

Cf. A006516, A079598.

Sequence in context: A087590 A048561 A112909 * A307324 A100601 A260029

Adjacent sequences:  A083906 A083907 A083908 * A083910 A083911 A083912

KEYWORD

easy,nonn

AUTHOR

Marco Matosic, Jun 19 2003

EXTENSIONS

More terms from Harvey P. Dale, Jul 25 2016

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 25 21:06 EDT 2019. Contains 322461 sequences. (Running on oeis4.)