OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[10000], Min[Length/@Split[IntegerDigits[#, 3]]]>1&] (* Vincenzo Librandi, Feb 05 2014 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved