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Search: id:A133383
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A133383 10 followed by 2n 9's. +0
1
10, 1099, 109999, 10999999, 1099999999, 109999999999, 10999999999999, 1099999999999999, 109999999999999999, 10999999999999999999, 1099999999999999999999, 109999999999999999999999 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n)=11*10^(2*n)-1, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Dec 19 2007

CROSSREFS

Sequence in context: A054609 A119045 A069886 this_sequence A071672 A122230 A138147

Adjacent sequences: A133380 A133381 A133382 this_sequence A133384 A133385 A133386

KEYWORD

nonn,base

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Oct 29 2007

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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