The least common multiple of the arithmetic derivative and the primorial base exp-function.

Terms

a(0) =0a(1) =0a(2) =3a(3) =6a(4) =36a(5) =18a(6) =5a(7) =10a(8) =60a(9) =30a(10) =315a(11) =90a(12) =400a(13) =50a(14) =225a(15) =600a(16) =7200a(17) =450a(18) =2625a(19) =250a(20) =3000a(21) =750a(22) =14625a(23) =2250a(24) =27500a(25) =1250a(26) =1875a(27) =33750a(28) =180000a(29) =11250