Numbers of the form P(k)^m * Q(k), k > 1, m >= 0, with P(k) = Product_{i=1..k} prime(i) = A002110(k) and Q(k) = Product_{j=1..k} P(j) = A006939(k).

A387492

Numbers of the form P(k)^m * Q(k), k > 1, m >= 0, with P(k) = Product_{i=1..k} prime(i) = A002110(k) and Q(k) = Product_{j=1..k} P(j) = A006939(k).

Terms

    a(0) =12a(1) =72a(2) =360a(3) =432a(4) =2592a(5) =10800a(6) =15552a(7) =75600a(8) =93312a(9) =324000a(10) =559872a(11) =3359232a(12) =9720000a(13) =15876000a(14) =20155392a(15) =120932352a(16) =174636000a(17) =291600000a(18) =725594112a(19) =3333960000a(20) =4353564672a(21) =8748000000a(22) =26121388032a(23) =156728328192a(24) =262440000000a(25) =403409160000a(26) =700131600000a(27) =940369969152

External references