Smallest positive integer for which the number of divisors is a product of 2 distinct primes: Min{x; d[x]=pq}.

A061148

Smallest positive integer for which the number of divisors is a product of 2 distinct primes: Min{x; d[x]=pq}.

Terms

    a(0) =12a(1) =48a(2) =192a(3) =144a(4) =576a(5) =3072a(6) =12288a(7) =9216a(8) =196608a(9) =5184a(10) =786432a(11) =36864a(12) =12582912a(13) =589824a(14) =82944a(15) =2359296a(16) =805306368a(17) =3221225472a(18) =331776a(19) =37748736a(20) =206158430208a(21) =746496a(23) =5308416a(25) =2415919104

External references