Numbers whose base-5 representation contains exactly three 0's and one 4.

Terms

a(0) =500a(1) =629a(2) =645a(3) =725a(4) =1125a(5) =1254a(6) =1270a(7) =1350a(8) =1750a(9) =1879a(10) =1895a(11) =1975a(12) =2375a(13) =2501a(14) =2502a(15) =2503a(16) =2505a(17) =2510a(18) =2515a(19) =2525a(20) =2550a(21) =2575a(22) =2625a(23) =2750a(24) =2875a(25) =3134a(26) =3139a(27) =3144a(28) =3146a(29) =3147