Numbers k such that (56*10^k + 223)/9 is prime.

Terms

a(0) =0a(1) =2a(2) =3a(3) =5a(4) =8a(5) =32a(6) =36a(7) =53a(8) =92a(9) =126a(10) =156a(11) =158a(12) =536a(13) =639a(14) =846a(15) =1356a(16) =1953a(17) =2237a(18) =4407a(19) =5082a(20) =17447a(21) =17922a(22) =24806a(23) =25926a(24) =29699a(25) =30474a(26) =37424a(27) =63942