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Search: id:A010882
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| A010882 |
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Simple periodic sequence. |
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+0
4
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| 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Partial sums are given by A130481(n)+n+1. - Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Jun 08 2007
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FORMULA
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G.f.:(1+2x+3x^2)/(1-x^3) - Paul Barry (pbarry(AT)wit.ie), May 25 2003
a(n) = 1 + (n mod 3) - Paolo P. Lava (ppl(AT)spl.at), Nov 21 2006
a(n)=A010872(n)+1. - Hieronymus Fischer (Hieronymus.Fischer(AT)gmx.de), Jun 08 2007
a(n) = 6 - a(n-1) - a(n-2) for n > 1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 13 2008
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MATHEMATICA
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Nest[ Flatten[ # /. {1 -> {1, 2}, 2 -> {3, 1}, 3 -> {2, 3}}] &, {1}, 7] (from Robert G. Wilson v Mar 08 2005)
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CROSSREFS
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Cf. A010872, A010873, A010874, A010875, A010876, A004526, A002264, A002265, A002266.
Adjacent sequences: A010879 A010880 A010881 this_sequence A010883 A010884 A010885
Sequence in context: A082846 A117373 A132677 this_sequence A106590 A054073 A059832
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KEYWORD
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nonn
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AUTHOR
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njas
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