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Search: id:A130815
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| A130815 |
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Period 6: repeat 1,5,4,-1,-5,-4. |
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+0
2
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| 1, 5, 4, -1, -5, -4, 1, 5, 4, -1, -5, -4, 1, 5, 4, -1, -5, -4, 1, 5, 4, -1, -5, -4
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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Also binomial transform of 1 4 -5 .
a(n)=(1/6)*{-5*(n mod 6)-[(n+1) mod 6]+4*[(n+2) mod 6]+5*[(n+3) mod 6]+[(n+4) mod 6]-4*[(n+5) mod 6]}, with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Aug 28 2007
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CROSSREFS
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Adjacent sequences: A130812 A130813 A130814 this_sequence A130816 A130817 A130818
Sequence in context: A136042 A087707 A113011 this_sequence A084129 A011503 A072222
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KEYWORD
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sign
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Jul 16 2007
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EXTENSIONS
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Edited by njas, Sep 15 2007
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