Smallest nonnegative integer m such that m! begins with n in base 10.

Terms

a(0) =0a(1) =2a(2) =9a(3) =8a(4) =7a(5) =3a(6) =6a(7) =14a(8) =96a(9) =27a(10) =22a(11) =5a(12) =15a(13) =42a(14) =25a(15) =89a(16) =69a(17) =76a(18) =63a(19) =16a(20) =87a(21) =113a(22) =54a(23) =4a(24) =23a(25) =30a(26) =205a(27) =85a(28) =34a(29) =28