OFFSET
0,2
FORMULA
a(n) =(-a([n/3])-n) mod 3 =A060583(n) mod 3.
EXAMPLE
a(4)=0 since a([4/3])=a(1)=2, (4 mod 3)=1 and 3-2-1=0. a(5)=2 since a([5/3])=a(1)=2 and (5 mod 3)=2.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Henry Bottomley, Apr 04 2001
STATUS
approved