Numbers having four 4's in base 5.

Terms

a(0) =624a(1) =1249a(2) =1874a(3) =2499a(4) =2624a(5) =2749a(6) =2874a(7) =2999a(8) =3024a(9) =3049a(10) =3074a(11) =3099a(12) =3104a(13) =3109a(14) =3114a(15) =3119a(16) =3120a(17) =3121a(18) =3122a(19) =3123a(20) =3749a(21) =4374a(22) =4999a(23) =5624a(24) =5749a(25) =5874a(26) =5999a(27) =6124a(28) =6149a(29) =6174