A045146 - OEIS

%I #10 Apr 22 2023 20:29:43

%S 703,751,763,766,943,955,958,1003,1006,1018,1727,1775,1787,1790,1967,

%T 1979,1982,2027,2030,2042,2239,2287,2299,2302,2495,2543,2555,2558,

%U 2623,2687,2767,2783,2803,2807,2812,2813,2863,2875

%N Numbers whose base-4 representation contains exactly two 2's and three 3's.

%t Select[Range[3000],DigitCount[#,4,2]==2&&DigitCount[#,4,3]==3&] (* _Harvey P. Dale_, Jun 21 2018 *)

%Y Cf. A007090.

%K nonn,base

%O 1,1

%A _Clark Kimberling_