a(n) = a(n-1) + 10^n * a(n-2) with a(0) = 1 and a(1) = 1.

A280340

a(n) = a(n-1) + 10^n * a(n-2) with a(0) = 1 and a(1) = 1.

Terms

    a(0) =1a(1) =1a(2) =101a(3) =1101a(4) =1011101a(5) =111111101

External references