OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..7798
MATHEMATICA
Select[Range[0, 400], DigitCount[#, 5, 0]==1 && DigitCount[#, 5, 1]==0 &] (* Vincenzo Librandi, Jun 29 2019 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
a(1) = 0 inserted by Georg Fischer, Jun 28 2019
STATUS
approved