17-almost primes (generalization of semiprimes).

Terms

a(0) =131072a(1) =196608a(2) =294912a(3) =327680a(4) =442368a(5) =458752a(6) =491520a(7) =663552a(8) =688128a(9) =720896a(10) =737280a(11) =819200a(12) =851968a(13) =995328a(14) =1032192a(15) =1081344a(16) =1105920a(17) =1114112a(18) =1146880a(19) =1228800a(20) =1245184a(21) =1277952a(22) =1492992a(23) =1507328a(24) =1548288a(25) =1605632a(26) =1622016