Smallest oblong number having n prime divisors (with multiplicity).

Terms

a(0) =2a(1) =6a(2) =12a(3) =56a(4) =72a(5) =240a(6) =1056a(7) =4160a(8) =4032a(9) =50400a(10) =65280a(11) =1639680a(12) =262656a(13) =15748992a(14) =40953600a(15) =104867840a(16) =16773120a(17) =205535232a(18) =1073774592a(19) =4294901760a(20) =52613120000a(21) =32480870400a(22) =233605472256a(23) =68719214592