Numbers whose base-4 representation has 4 fewer 0's than 3's.

Terms

a(0) =255a(1) =511a(2) =767a(3) =895a(4) =959a(5) =991a(6) =1007a(7) =1015a(8) =1019a(9) =1021a(10) =1022a(11) =1535a(12) =1791a(13) =1919a(14) =1983a(15) =2015a(16) =2031a(17) =2039a(18) =2043a(19) =2045a(20) =2046a(21) =2559a(22) =2815a(23) =2943a(24) =3007a(25) =3039a(26) =3055a(27) =3063a(28) =3067a(29) =3069