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A134977
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Period 6: repeat 1, 4, 2, 3, 0, 2 .
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0
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1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2, 1, 4, 2, 3, 0, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| North-West diagonal sums of A134658.
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FORMULA
| O.g.f.: -1/(x+1)-2/(x-1)+x/(x^2-x+1) . a(n) = 2-(-1)^n+A010892(n-1) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2008
a(n)=(1/30)*{9*(n mod 6)-6*[(n+1) mod 6]+19*[(n+2) mod 6]-[(n+3) mod 6]+14*[(n+4) mod 6]-11*[(n+5) mod 6]}, with n>=0 - Paolo P. Lava (paoloplava(AT)gmail.com), Feb 11 2008
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CROSSREFS
| Cf. A119910, A130784, A131756.
Sequence in context: A075418 A199221 A096870 * A199081 A145326 A178915
Adjacent sequences: A134974 A134975 A134976 * A134978 A134979 A134980
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KEYWORD
| nonn
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AUTHOR
| Paul Curtz (bpcrtz(AT)free.fr), Feb 04 2008
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