Integers k such that 10^k+19 is a prime number.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =10a(5) =11a(6) =17a(7) =59a(8) =81a(9) =108a(10) =574a(11) =629a(12) =1069a(13) =1759a(14) =2063a(15) =2682a(16) =9174a(17) =40929a(18) =42457a(19) =66033