a(n) is the largest base-10 string such that the n-th number coprime to 10 does not divide any substring of a(n).

A114922

a(n) is the largest base-10 string such that the n-th number coprime to 10 does not divide any substring of a(n).

Terms

    a(0) =88a(1) =999993a(2) =88888888a(3) =9898654321a(4) =999998986863

External references