Start with a(1)=2; to get a(n+1) insert in a(n) at the rightmost possible position the smallest possible digit such that the new number is a prime.

A356557

Start with a(1)=2; to get a(n+1) insert in a(n) at the rightmost possible position the smallest possible digit such that the new number is a prime.

Terms

    a(0) =2a(1) =23a(2) =233a(3) =2333a(4) =23333a(5) =233323a(6) =2333231a(7) =23332301a(8) =233323001a(9) =2333230019a(10) =23332030019a(11) =233320360019

External references