OFFSET
1,1
LINKS
Enrique Pérez Herrero, Table of n, a(n) for n = 1..2000
MATHEMATICA
Select[Range[9000], DigitCount[#, 10, 3]==1&] (* Enrique Pérez Herrero, Nov 29 2013 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved