OFFSET
1,3
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[0, 250], And@@NonNegative/@Differences[IntegerDigits[#, 11]]&] (* Harvey P. Dale, Oct 20 2011 *)
Select[Range[0, 120], LessEqual@@IntegerDigits[#, 11]&] (* Ray Chandler, Jan 06 2014 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
EXTENSIONS
Change offset to 1 by Ray Chandler, Jan 06 2014
STATUS
approved