OFFSET
1,1
COMMENTS
All terms in this sequence divisible by 3 are also divisible by 9.
MATHEMATICA
Rest[Select[Union[Abs[#[[1]]^3 - #[[2]]^3]&/@Tuples[Range[50], {2}]], Divisible[#, 6] && Divisible[#, 18]&]] (* Harvey P. Dale, Dec 05 2010 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Extended by Ray Chandler, Nov 30 2008
STATUS
approved