OFFSET
1,1
COMMENTS
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..2000
FORMULA
a(n) = 15*A043318(n) (= 15*n for n<14). - M. F. Hasler, Feb 02 2014
MATHEMATICA
Select[Range[9000], Union[Length/@Split[IntegerDigits[#, 14]]]=={2}&] (* Harvey P. Dale, Apr 26 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved