OFFSET
1,1
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..125
EXAMPLE
a(2)=37 since 37 and 74 contain a 7.
MATHEMATICA
Table[SelectFirst[Range[10^6], Times @@ Boole@ Map[DigitCount[#, 10, 7] > 0 &, # Range@ n] > 0 &], {n, 12}] (* Michael De Vlieger, Apr 27 2017, Version 10 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
EXTENSIONS
More terms from Patrick De Geest, Oct 15 1999
STATUS
approved