a(1) = 9; a(n) = smallest palindromic multiple of a(n-1).

A068668

a(1) = 9; a(n) = smallest palindromic multiple of a(n-1).

Terms

    a(0) =9a(1) =99a(2) =1881a(3) =171171a(4) =1882881a(5) =306909603a(6) =11355655311

External references