Numbers whose base-5 representation contains exactly two 1's and three 4's.

Terms

a(0) =874a(1) =1174a(2) =1234a(3) =1246a(4) =2674a(5) =2734a(6) =2746a(7) =3034a(8) =3046a(9) =3106a(10) =3374a(11) =3674a(12) =3734a(13) =3746a(14) =3874a(15) =4124a(16) =4249a(17) =4274a(18) =4324a(19) =4349a(20) =4354a(21) =4364a(22) =4369a(23) =4370a(24) =4372a(25) =4373a(26) =4624a(27) =4924a(28) =4984a(29) =4996