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A159955
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Period 9 : 0,1,2,1,2,0,2,0,1 .
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0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 2, 1, 2, 0, 2, 0, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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FORMULA
| a(n+9)=a(n) with a(0)=a(5)=a(7)=0, a(1)=a(3)=a(8)=1, a(2)=a(4)=a(6)=2 .
a(n)=(1/36)*{5*(n mod 9)-3*[(n+1) mod 9]+9*[(n+2) mod 9]-7*[(n+3) mod 9]+9*[(n+4) mod 9]-3*[(n+5) mod 9]+5*[(n+6) mod 9]-3*[(n+7) mod 9]-3*[(n+8) mod 9]}, with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Nov 12 2009]
a(n)= floor((4*n-9)/3) mod 3. [From Gary Detlefs (gdetlefs(AT)aol.com), May 15 2011]
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CROSSREFS
| Sequence in context: A166453 A118233 A181117 * A053838 A117167 A117169
Adjacent sequences: A159952 A159953 A159954 * A159956 A159957 A159958
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KEYWORD
| easy,nonn
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AUTHOR
| Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Apr 27 2009
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