a(n) is the largest base-3 string such that the n-th number coprime to 3 does not divide any substring of a(n).

A114880

a(n) is the largest base-3 string such that the n-th number coprime to 3 does not divide any substring of a(n).

Terms

    a(0) =1a(1) =212a(2) =2111a(3) =22222a(4) =21112a(5) =222111222a(6) =212121212a(7) =22112121a(8) =212221222212

External references