OFFSET
1,1
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[ Range[ 729 ], (Count[ IntegerDigits[ #, 3 ], 2 ]==4)& ]
Select[Range[700], DigitCount[#, 3, 2]==4&] (* Harvey P. Dale, Oct 10 2024 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved