OFFSET
1,1
MATHEMATICA
Select[Range[2000], MemberQ[Partition[IntegerDigits[#, 7], 2, 1], {6, 5}] && !MemberQ[ Partition[IntegerDigits[#-1, 7], 2, 1], {6, 5}]&] (* Harvey P. Dale, May 21 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved