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A242647
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Sign of (the n-th continued fraction convergent to 2*Pi divided by the n-th convergent to Pi minus 2).
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2
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0, 1, -1, 1, -1, 1, -1, 0, 1, 0, 0, 0, 0, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 0, 0, 1, 0, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 0, 0, 0, -1, 1, -1, 1, -1
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OFFSET
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1
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COMMENTS
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Zeros appear in clusters (see A242857). Conjecture: Remove all zeros and the remaining terms will alternate signs.
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REFERENCES
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Hans Havermann, Posting to Math Fun Mailing List, May 22 2014.
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LINKS
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MATHEMATICA
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Sign[Convergents[2*Pi, 200]/Convergents[Pi, 200]-2]
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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