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A124166 100*(10^n-1)/9. 1
0, 100, 1100, 11100, 111100, 1111100, 11111100, 111111100, 1111111100, 11111111100, 111111111100, 1111111111100, 11111111111100, 111111111111100, 1111111111111100, 11111111111111100, 111111111111111100 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

MAPLE

a:=n->sum (10^(n-j+2), j=0..n): seq(a(n), n=0..28); #

MATHEMATICA

Table[FromDigits[PadLeft[{0, 0}, n, 1]], {n, 2, 20}] (* Harvey P. Dale, Jul 24 2012 *)

CROSSREFS

Sequence in context: A267153 A025421 A300254 * A103175 A163450 A284591

Adjacent sequences:  A124163 A124164 A124165 * A124167 A124168 A124169

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, Dec 02 2006

STATUS

approved

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Last modified August 4 19:37 EDT 2020. Contains 336202 sequences. (Running on oeis4.)