Numbers whose base-5 representation contains exactly three 0's and one 2.

Terms

a(0) =250a(1) =627a(2) =635a(3) =675a(4) =875a(5) =1251a(6) =1253a(7) =1254a(8) =1255a(9) =1265a(10) =1270a(11) =1275a(12) =1325a(13) =1350a(14) =1375a(15) =1625a(16) =1750a(17) =1877a(18) =1885a(19) =1925a(20) =2125a(21) =2502a(22) =2510a(23) =2550a(24) =2750a(25) =3132a(26) =3136a(27) =3138a(28) =3139a(29) =3142