OFFSET
1,1
LINKS
MATHEMATICA
With[{prs=Prime[Range[100]]}, Flatten[IntegerDigits/@Complement[prs, Flatten[Select[Partition[prs, 2, 1], Last[#]-First[#]==2&]]]]] (* Harvey P. Dale, Sep 20 2011 *)
CROSSREFS
KEYWORD
easy,nonn,base,less
AUTHOR
Omar E. Pol, Nov 10 2007
STATUS
approved