Numbers having four 0's in base 6.

Terms

a(0) =1296a(1) =2592a(2) =3888a(3) =5184a(4) =6480a(5) =7777a(6) =7778a(7) =7779a(8) =7780a(9) =7781a(10) =7782a(11) =7788a(12) =7794a(13) =7800a(14) =7806a(15) =7812a(16) =7848a(17) =7884a(18) =7920a(19) =7956a(20) =7992a(21) =8208a(22) =8424a(23) =8640a(24) =8856a(25) =9072a(26) =10368a(27) =11664a(28) =12960a(29) =14256