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Search: id:A000533
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| 1, 11, 101, 1001, 10001, 100001, 1000001, 10000001, 100000001, 1000000001, 10000000001, 100000000001, 1000000000001, 10000000000001, 100000000000001, 1000000000000001, 10000000000000001
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Also, b^n+1 in base b, for any base b >= 2.
Also, representation in base 2 of A083318. - Omar E. Pol (info(AT)polprimos.com), Feb 24 2008
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FORMULA
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a(n) = 10^n + 1 - 0^n. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 10 2003
G.f.: (1-10x^2)/((1-x)(1-10x)); a(n)=sum{k=0..n, binomial(n, k)*0^(k(n-k))10^k}. - Paul Barry (pbarry(AT)wit.ie), Feb 05 2005
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CROSSREFS
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Cf. A083318.
Adjacent sequences: A000530 A000531 A000532 this_sequence A000534 A000535 A000536
Sequence in context: A056810 A116098 A116129 this_sequence A089183 A113999 A068166
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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