The minimal number which has multiplicative persistence 7 in base n.

Terms

a(0) =1409794a(1) =68889a(2) =38200a(3) =17902874277a(4) =1494a(5) =2532a(6) =19526a(7) =15838a(8) =1101a(9) =15820a(10) =943a(11) =2674a(12) =2118a(13) =3275a(14) =412a(15) =3310a(16) =1593a(17) =440a(18) =478a(19) =2036a(20) =456a(21) =713a(22) =738a(23) =633a(24) =658a(25) =705a(26) =907a(27) =643a(28) =803a(29) =641