Numbers k such that (22*10^k - 37)/3 is prime.

Terms

a(0) =1a(1) =3a(2) =5a(3) =6a(4) =11a(5) =12a(6) =15a(7) =21a(8) =23a(9) =25a(10) =30a(11) =64a(12) =71a(13) =72a(14) =409a(15) =1491a(16) =1555a(17) =4469a(18) =5289a(19) =7002a(20) =16174a(21) =16485a(22) =68133a(23) =73853a(24) =134111