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A093136 Expansion of (1-8x)/(1-10x). 3
1, 2, 20, 200, 2000, 20000, 200000, 2000000, 20000000, 200000000, 2000000000, 20000000000, 200000000000, 2000000000000, 20000000000000, 200000000000000, 2000000000000000, 20000000000000000, 200000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Partial sums are A093135. A convex combination of 10^n and 0^n.

LINKS

Table of n, a(n) for n=0..18.

Index entries for linear recurrences with constant coefficients, signature (10).

FORMULA

a(n) = (2*10^n + 8*0^n)/10.

a(n) = 2*10^(n-1), n > 0. - Vincenzo Librandi, Aug 02 2010

CROSSREFS

Sequence in context: A322298 A136902 A136884 * A037519 A037722 A109107

Adjacent sequences:  A093133 A093134 A093135 * A093137 A093138 A093139

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Mar 24 2004

STATUS

approved

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Last modified June 6 16:34 EDT 2020. Contains 334828 sequences. (Running on oeis4.)