a(n+1) is the smallest prime formed by appending a single digit to a(n); a(1)=18.

A160954

a(n+1) is the smallest prime formed by appending a single digit to a(n); a(1)=18.

Terms

    a(0) =18a(1) =181a(2) =1811a(3) =18119a(4) =181193a(5) =1811939

External references