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A144110 Period 6: repeat 2,2,2,1,1,1 0
2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

a(n)=2 for n=0,1,2 modulo 6; a(n)=1 for n=3,4,5 modulo 6 .

Terms of the simple continued fraction of 29/[2*sqrt(210)-17]. Decimal expansion of 667/3003. [From Paolo P. Lava (paoloplava(AT)gmail.com), Aug 05 2009]

FORMULA

G.f.: (1+2x^3)/((1-x)(1+x)(1-x+x^2)). a(n)= 3/2 -(-1)^n/6-A057079(n)/3. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 17 2008]

a(n)=(1/30)*{8*(n mod 6)+3*[(n+1) mod 6]+3*[(n+2) mod 6]-2*[(n+3) mod 6]+3*[(n+4) mod 6]+3*[(n+5) mod 6]}, with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Sep 19 2008]

CROSSREFS

Cf. A135265

Sequence in context: A048858 A172497 A135265 * A076490 A124278 A139755

Adjacent sequences:  A144107 A144108 A144109 * A144111 A144112 A144113

KEYWORD

nonn

AUTHOR

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 11 2008, Sep 15 2008

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Last modified February 15 16:56 EST 2012. Contains 205825 sequences.