OFFSET
1,1
MATHEMATICA
f[n_] := Block[{rls}, rls=Transpose[Partition[Length/@Split[IntegerDigits[n, 2]], 2, 2, {1, 1}, 0]]; And@@Unequal@@@rls && Intersection@@rls != {}]; Select[Range[300], f] (* Ray Chandler, Oct 21 2011 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Leroy Quet, May 07 2010
EXTENSIONS
Extended by Ray Chandler, Oct 21 2011
STATUS
approved