Numbers having three 3's in base 10.

Terms

a(0) =333a(1) =1333a(2) =2333a(3) =3033a(4) =3133a(5) =3233a(6) =3303a(7) =3313a(8) =3323a(9) =3330a(10) =3331a(11) =3332a(12) =3334a(13) =3335a(14) =3336a(15) =3337a(16) =3338a(17) =3339a(18) =3343a(19) =3353a(20) =3363a(21) =3373a(22) =3383a(23) =3393a(24) =3433a(25) =3533a(26) =3633a(27) =3733a(28) =3833a(29) =3933