OFFSET
1,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[0, 1000], Max[Differences[IntegerDigits[#, 13]]]<=0&] (* Vincenzo Librandi, Dec 26 2012 *)
Select[Range[0, 123], GreaterEqual@@IntegerDigits[#, 13]&] (* Ray Chandler, Jan 06 2014 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved