Numbers whose base-4 representation contains exactly one 0 and four 3's.

Terms

a(0) =831a(1) =975a(2) =1011a(3) =1020a(4) =1279a(5) =1855a(6) =1999a(7) =2035a(8) =2044a(9) =2303a(10) =2879a(11) =3023a(12) =3059a(13) =3068a(14) =3199a(15) =3263a(16) =3295a(17) =3311a(18) =3319a(19) =3323a(20) =3325a(21) =3326a(22) =3391a(23) =3535a(24) =3571a(25) =3580a(26) =3647a(27) =3791a(28) =3827a(29) =3836