OFFSET
1,3
MATHEMATICA
b11Q[n_]:=Module[{idn11=DigitCount[n, 11]}, idn11[[2]]==idn11[[10]]]; Select[Range[0, 100], b11Q] (* Harvey P. Dale, Oct 19 2011 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved