Numbers k such that 2*10^k - 87 is prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =9a(4) =10a(5) =13a(6) =15a(7) =24a(8) =26a(9) =38a(10) =39a(11) =42a(12) =433a(13) =489a(14) =495a(15) =513a(16) =597a(17) =829a(18) =2019a(19) =2738a(20) =3096a(21) =3691a(22) =5437a(23) =7537a(24) =8536a(25) =34125a(26) =40105a(27) =41790a(28) =52713a(29) =104811