Smallest 7-smooth number beginning with n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =10a(10) =112a(11) =12a(12) =135a(13) =14a(14) =15a(15) =16a(16) =175a(17) =18a(18) =192a(19) =20a(20) =21a(21) =224a(22) =2304a(23) =24a(24) =25a(25) =2625a(26) =27a(27) =28a(28) =294a(29) =30