Composite numbers n such that juxtaposition of prime factors of n has length 7.

Terms

a(0) =128a(1) =192a(2) =288a(3) =320a(4) =352a(5) =416a(6) =432a(7) =448a(8) =480a(9) =528a(10) =544a(11) =608a(12) =624a(13) =648a(14) =672a(15) =720a(16) =736a(17) =792a(18) =800a(19) =816a(20) =880a(21) =912a(22) =928a(23) =936a(24) =968a(25) =972a(26) =992a(27) =1008a(28) =1040a(29) =1080