Numbers k such that (26*10^k - 23)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =10a(3) =16a(4) =78a(5) =97a(6) =125a(7) =138a(8) =192a(9) =242a(10) =290a(11) =373a(12) =408a(13) =467a(14) =583a(15) =892a(16) =899a(17) =1709a(18) =1944a(19) =2154a(20) =3618a(21) =5225a(22) =8974a(23) =9377a(24) =12504a(25) =20042a(26) =49106a(27) =63073a(28) =92152a(29) =147973