OFFSET
1,1
MATHEMATICA
ok018Q[n_]:=MemberQ[Partition[IntegerDigits[n, 8], 2, 1], {0, 1}] && !MemberQ[Partition[IntegerDigits[n+1, 8], 2, 1], {0, 1}]; Select[Range[2500], ok018Q] (* Harvey P. Dale, Feb 04 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved