a(1)= 7, a(n) = least prime obtained by prefixing the digits of a multiple of n to a(n-1).

A088057

a(1)= 7, a(n) = least prime obtained by prefixing the digits of a multiple of n to a(n-1).

Terms

    a(0) =7a(1) =47a(2) =347a(3) =12347a(4) =5012347a(5) =425012347a(6) =7425012347

External references