Smallest number with 2^n divisors.

Terms

a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =840a(6) =7560a(7) =83160a(8) =1081080a(9) =17297280a(10) =294053760a(11) =5587021440a(12) =128501493120