Numbers k such that (26*10^k - 119)/3 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =22a(6) =25a(7) =29a(8) =59a(9) =89a(10) =221a(11) =453a(12) =535a(13) =1708a(14) =2242a(15) =2413a(16) =3581a(17) =4234a(18) =4848a(19) =5380a(20) =6548a(21) =8654a(22) =11035a(23) =17308a(24) =27634a(25) =28807a(26) =35481a(27) =79678a(28) =80875a(29) =114658