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A174664
Sequence given by: a(0)=1, a(1)=2, and the formula a(n)=a(abs(floor((1/3)*n-a(n-2)))) for n>=2.
2
1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
OFFSET
0,2
EXAMPLE
a(2)=a(abs(floor(-2/3)))=a(1)=2. a(3)=a(abs(1-a(1)))=a(1)=2. a(4)=a(abs(floor(4/3-2)))=a(1)=2. a(5)=a(abs(floor(5/3-a(3))))=a(1)=2. a(6)=a(2-a(4))=a(0)=1.
CROSSREFS
Cf. A174353.
Sequence in context: A037813 A159700 A083534 * A027386 A102300 A359511
KEYWORD
easy,nonn
AUTHOR
Richard Choulet, Mar 26 2010
STATUS
approved