OFFSET
1,1
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
MAPLE
select(t -> numboccur(3, convert(t, base, 6))=1, [$1..1000]); # Robert Israel, Aug 10 2020
MATHEMATICA
Select[Range[200], DigitCount[#, 6, 3]==1&] (* Harvey P. Dale, Oct 20 2017 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved