Numbers k such that (22*10^k - 73)/3 is prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =17a(4) =34a(5) =35a(6) =47a(7) =65a(8) =215a(9) =254a(10) =443a(11) =676a(12) =878a(13) =1067a(14) =1401a(15) =1660a(16) =1880a(17) =8987a(18) =14318a(19) =14410a(20) =52217a(21) =54958a(22) =63034a(23) =171929