Integers k such that 5*10^k + 51 is prime.

Terms

a(0) =1a(1) =3a(2) =4a(3) =16a(4) =430a(5) =727a(6) =1415a(7) =2691a(8) =3160a(9) =3904a(10) =5464a(11) =19875a(12) =65255a(13) =68524