Smallest triangular number with n prime factors (counted with multiplicity).

Terms

a(0) =1a(1) =3a(2) =6a(3) =28a(4) =36a(5) =120a(6) =528a(7) =2080a(8) =2016a(9) =25200a(10) =32640a(11) =819840a(12) =131328a(13) =7874496a(14) =20476800a(15) =52433920a(16) =8386560a(17) =102767616a(18) =536887296a(19) =2147450880a(20) =26306560000a(21) =16240435200a(22) =116802736128a(23) =34359607296a(25) =549755289600