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Search: id:A131718
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| A131718 |
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Period 6: repeat 1, 1, 2, 1, 2, 1. |
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+0
2
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| 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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Terms of the simple continued fraction of 38/[sqrt(1365)-15]. [From Paolo P. Lava (ppl(AT)spl.at), Aug 05 2009]
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FORMULA
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a(n)=(1/90)*{8*(n mod 6)+23*[(n+1) mod 6]-7*[(n+2) mod 6]+23*[(n+3) mod 6]-7*[(n+4) mod 6]+8*[(n+5) mod 6]}, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Oct 02 2007
O.g.f.: -(1+x+2x^2+x^3+2x^4+x^5)/((x-1)(1+x)(x^2+x+1)(x^2-x+1)) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 17 2008
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CROSSREFS
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Sequence in context: A080215 A060500 A160198 this_sequence A131017 A049046 A003647
Adjacent sequences: A131715 A131716 A131717 this_sequence A131719 A131720 A131721
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Sep 15 2007
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