Integers k such that 10^k+39 is a prime number.

Terms

a(0) =2a(1) =3a(2) =4a(3) =6a(4) =8a(5) =12a(6) =20a(7) =72a(8) =196a(9) =676a(10) =1528a(11) =1923a(12) =5244a(13) =5379a(14) =6308a(15) =21222a(16) =81778