Numbers whose sum of exponents is equal to the product of prime factors.

Terms

a(0) =4a(1) =27a(2) =96a(3) =144a(4) =216a(5) =324a(6) =486a(7) =2560a(8) =3125a(9) =6400a(10) =16000a(11) =40000a(12) =57344a(13) =100000a(14) =200704a(15) =250000a(16) =625000a(17) =702464a(18) =823543a(19) =1562500a(20) =2458624a(21) =3906250a(22) =8605184a(23) =23068672a(24) =23914845a(25) =30118144a(26) =39858075a(27) =66430125a(28) =105413504a(29) =110716875