Smallest number having exactly n divisors d such that also d+2 is a divisor.

Terms

a(0) =1a(1) =3a(2) =15a(3) =12a(4) =24a(5) =60a(6) =180a(7) =120a(8) =360a(9) =720a(10) =1260a(11) =840a(12) =1680a(13) =3360a(14) =2520a(15) =7560a(16) =5040a(17) =10080a(18) =30240a(19) =32760a(20) =27720a(21) =85680a(22) =83160a(23) =55440a(24) =110880a(25) =166320a(26) =277200a(27) =526680a(28) =360360a(29) =831600