Smallest number beginning with 6 and having exactly n prime divisors counted with multiplicity.

Terms

a(0) =61a(1) =6a(2) =63a(3) =60a(4) =612a(5) =64a(6) =648a(7) =640a(8) =6048a(9) =6400a(10) =6912a(11) =6144a(12) =62208a(13) =61440a(14) =602112a(15) =65536a(16) =663552a(17) =655360a(18) =6029312a(19) =6553600a(20) =60162048a(21) =6291456a(22) =63700992a(23) =62914560a(24) =616562688a(25) =67108864a(26) =679477248a(27) =603979776a(28) =6115295232a(29) =6039797760