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A166446
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Period 12: repeat [1,1,1,1,0,0,-1,-1,-1,-1,0,0].
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2
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1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0
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OFFSET
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0,1
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COMMENTS
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LINKS
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FORMULA
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G.f.: (1+x)/(1-x^2+x^4).
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MATHEMATICA
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LinearRecurrence[{0, 1, 0, -1}, {1, 1, 1, 1}, 50] (* G. C. Greubel, May 14 2016 *)
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PROG
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(Magma) &cat [[1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0]^^10]; // Vincenzo Librandi, May 15 2016
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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