Smallest number having exactly n ones in binary representation and also exactly n prime factors (counted with multiplicity).

A115156

Smallest number having exactly n ones in binary representation and also exactly n prime factors (counted with multiplicity).

Terms

    a(0) =2a(1) =6a(2) =28a(3) =54a(4) =405a(5) =486a(6) =2808a(7) =4860a(8) =21870a(9) =40824a(10) =192456a(11) =524160a(12) =708588a(13) =4059072a(14) =14348907a(15) =58576608a(16) =123731712a(17) =462944160a(18) =1837080000a(19) =3874204890a(20) =11809800000a(21) =48183984000a(22) =65086642152a(23) =339033848832

External references