Search: a122219 -id:a122219
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A131291
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Period 9: repeat [5, 4, 5, 3, 4, 3, 5, 4, 5].
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+10
2
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5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4, 5, 3, 4, 3, 5, 4, 5, 5, 4
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OFFSET
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0,1
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COMMENTS
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Continued fraction expansion of +274627/108809+(113/108809)*sqrt(6833690) = 5.2387578233.... - R. J. Mathar, Mar 08 2012
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LINKS
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FORMULA
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O.g.f.: (1-x)/(9*(x^2+x+1))+2*(1+x^2-x^3-x^5)/(3*(x^6+x^3+1))-38/(9*(x-1)). - R. J. Mathar, Apr 17 2008
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MAPLE
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A131291 := proc(n) op((n mod 9)+1, [5, 4, 5, 3, 4, 3, 5, 4, 5]) ; end: seq(A131291(n), n=0..100) ; # R. J. Mathar, Feb 27 2008
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MATHEMATICA
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PadRight[{}, 120, {5, 4, 5, 3, 4, 3, 5, 4, 5}] (* Harvey P. Dale, May 06 2015 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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Typo in definition corrected by Herman Jamke (hermanjamke(AT)fastmail.fm), Mar 22 2008
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STATUS
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approved
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