OFFSET
1,1
COMMENTS
a(n)=1 only for n=4; frequences f(m) of other values are almost equal, e.g., for n=1..1000, f(m=0..6): 166,1,165,166,168,164,170.
FORMULA
a(n)= (A039705(n)+1) mod 7
MATHEMATICA
Table[Mod[(Prime[n]+1), 7], {n, 1000}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Sep 24 2006
STATUS
approved