OFFSET
1,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..500
MATHEMATICA
Select[Range[0, 1366], LessEqual@@IntegerDigits[#, 4]&] (* Ray Chandler, Jan 06 2014 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
EXTENSIONS
Offset set to 1 by Ray Chandler, Jan 06 2014
STATUS
approved