Smallest number beginning with 1 and having exactly n prime divisors counted with multiplicity.

Terms

a(0) =1a(1) =11a(2) =10a(3) =12a(4) =16a(5) =108a(6) =144a(7) =128a(8) =1296a(9) =1152a(10) =1024a(11) =10368a(12) =10240a(13) =12288a(14) =16384a(15) =110592a(16) =147456a(17) =131072a(18) =1327104a(19) =1179648a(20) =1048576a(21) =10616832a(22) =10485760a(23) =12582912a(24) =16777216a(25) =113246208a(26) =100663296a(27) =134217728a(28) =1006632960a(29) =1207959552