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
KEYWORD
easy,nonn
AUTHOR
Richard Choulet, Mar 26 2010
STATUS
approved