Largest n-digit number in which the k-th digit is a divisor or a multiple of k.

A069573

Largest n-digit number in which the k-th digit is a divisor or a multiple of k.

Terms

    a(0) =9a(1) =89a(2) =989a(3) =8989a(4) =58989a(5) =658989a(6) =7658989a(7) =87658989a(8) =987658989a(9) =5987658989a(10) =15987658989a(11) =615987658989

External references