Numbers whose base-5 representation contains exactly three 0's and one 1.

Terms

a(0) =125a(1) =627a(2) =628a(3) =629a(4) =635a(5) =640a(6) =645a(7) =675a(8) =700a(9) =725a(10) =875a(11) =1000a(12) =1125a(13) =1251a(14) =1255a(15) =1275a(16) =1375a(17) =1876a(18) =1880a(19) =1900a(20) =2000a(21) =2501a(22) =2505a(23) =2525a(24) =2625a(25) =3137a(26) =3138a(27) =3139a(28) =3142a(29) =3143