Primes of the form floor((10/9)^k).

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =13a(6) =17a(7) =19a(8) =23a(9) =29a(10) =67a(11) =83a(12) =103a(13) =127a(14) =157a(15) =239a(16) =1163a(17) =13127a(18) =78713a(19) =97177a(20) =225749a(21) =1218277a(22) =1353641a(23) =3144587a(24) =4792847a(25) =753274331a(26) =27083690849