OFFSET
0,2
COMMENTS
Period 42: 1,4,4,2,1,3,0,3,3,1,0,2,6,2,2,0,6,1,5,1,1,6,5,0,4,0,0,5,4,6,3,6,6,4,3,5,2,5,5,3,2,4.
MATHEMATICA
Mod[3^# + #, 7] & /@ Range[0, 168]
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 26 2009
STATUS
approved