Numbers k such that (28*10^k + 191)/3 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =5a(5) =6a(6) =9a(7) =10a(8) =33a(9) =49a(10) =92a(11) =109a(12) =548a(13) =757a(14) =814a(15) =1289a(16) =1460a(17) =1644a(18) =2782a(19) =6355a(20) =8028a(21) =9276a(22) =9366a(23) =9765a(24) =12002a(25) =12089a(26) =14491a(27) =16180a(28) =29102a(29) =30989