OFFSET
1,1
MATHEMATICA
#*10^IntegerLength[#]+#&/@(3*Range[50]) (* Harvey P. Dale, Jan 14 2019 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Larry Guindine, Sep 30 2014
EXTENSIONS
Definition edited by N. J. A. Sloane, Sep 30 2014
More terms from Alois P. Heinz, Sep 30 2014
STATUS
approved