a(0)=1, a(1)=10, a(n) = sum_{k=0}^{k=n-1} 10^k a(k).

A015498

a(0)=1, a(1)=10, a(n) = sum_{k=0}^{k=n-1} 10^k a(k).

Terms

    a(0) =1a(1) =10a(2) =101a(3) =10201a(4) =10211201a(5) =102122221201

External references