OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..5000
MATHEMATICA
Select[Range[8000], Mod[Length[Split[IntegerDigits[#, 3]]], 10]==9&] (* Harvey P. Dale, Apr 29 2020 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved