a(n) is the least number whose divisors have a mean number of divisors that equals n.

Terms

a(0) =1a(1) =4a(2) =12a(3) =36a(4) =72a(5) =144a(6) =288a(7) =576a(8) =720a(9) =1728a(10) =4608a(11) =2880a(12) =18432a(13) =7200a(14) =8640a(15) =14400a(16) =294912a(17) =20160a(18) =1179648a(19) =43200a(20) =50400a(21) =115200a(22) =18874368a(23) =100800a(24) =172800a(25) =460800a(26) =181440a(27) =352800a(28) =1207959552a(29) =302400