a(n) = m-th prime power (not counting 1), where m = 10^n.

A143039

a(n) = m-th prime power (not counting 1), where m = 10^n.

Terms

    a(0) =16a(1) =419a(2) =7517a(3) =103511a(4) =1295953a(5) =15474787a(6) =179390821a(7) =2037968761a(8) =22801415981a(9) =252096675073

External references