OFFSET
1,1
MATHEMATICA
Flatten[Position[Partition[Table[Boole[MemberQ[Partition[ IntegerDigits[ n], 2, 1], {2, 9}]], {n, 3500}], 2, 1], {1, 0}]] (* Harvey P. Dale, Jan 18 2015 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved