Digits of juxtaposition of prime factors of composite n appear also in n.

Terms

a(0) =25a(1) =32a(2) =121a(3) =125a(4) =128a(5) =132a(6) =135a(7) =143a(8) =175a(9) =187a(10) =243a(11) =250a(12) =256a(13) =295a(14) =312a(15) =324a(16) =341a(17) =351a(18) =375a(19) =432a(20) =451a(21) =512a(22) =625a(23) =671a(24) =679a(25) =735a(26) =781a(27) =875a(28) =928a(29) =932