Numbers k such that (11*10^k + 19)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =9a(4) =17a(5) =18a(6) =20a(7) =24a(8) =29a(9) =36a(10) =48a(11) =114a(12) =126a(13) =135a(14) =153a(15) =170a(16) =241a(17) =363a(18) =483a(19) =579a(20) =681a(21) =948a(22) =2483a(23) =2798a(24) =3081a(25) =5137a(26) =5640a(27) =6890a(28) =7080a(29) =12600