a(1) = 3, a(n) = smallest palindromic nontrivial multiple of a(n-1) containing all decimal digits of a(n-1).

A342345

a(1) = 3, a(n) = smallest palindromic nontrivial multiple of a(n-1) containing all decimal digits of a(n-1).

Terms

    a(0) =3a(1) =33a(2) =363a(3) =36663a(4) =6306036a(5) =63066666036

External references