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Search: id:A131186
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| A131186 |
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Period 12: repeat 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1. |
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+0
1
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| 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3, 0, 3, 1, 0, 1, 2, 0, 2, 4, 0, 4, 3
(list; graph; listen)
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OFFSET
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0,3
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FORMULA
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a(n)=(1/396)*{43*(n mod 12)+76*[(n+1) mod 12]-89*[(n+2) mod 12]+109*[(n+3) mod 12]+43*[(n+4) mod 12]-122*[(n+5) mod 12]+142*[(n+6) mod 12]-56*[(n+7) mod 12]-56*[(n+8) mod 12]+76*[(n+9) mod 12]-23*[(n+10) mod 12]-23*[(n+11) mod 12]}, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Oct 24 2007
O.g.f.: -(x^5+3x^4-x^3-x^2+2x+1)*x/((x-1)(x^2+x+1)(x^4-x^2+1)) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 15 2008
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CROSSREFS
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Sequence in context: A141660 A115273 A126440 this_sequence A137320 A137312 A143507
Adjacent sequences: A131183 A131184 A131185 this_sequence A131187 A131188 A131189
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KEYWORD
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nonn,easy
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Sep 25 2007
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 15 2008
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