Composite numbers n such that juxtaposition of prime factors of n has length 9.

Terms

a(0) =512a(1) =768a(2) =1152a(3) =1280a(4) =1408a(5) =1664a(6) =1728a(7) =1792a(8) =1920a(9) =2112a(10) =2176a(11) =2432a(12) =2496a(13) =2592a(14) =2688a(15) =2880a(16) =2944a(17) =3168a(18) =3200a(19) =3264a(20) =3520a(21) =3648a(22) =3712a(23) =3744a(24) =3872a(25) =3888a(26) =3968a(27) =4032a(28) =4160a(29) =4320