Primes of the form floor((8/7)^k).

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =71a(6) =107a(7) =139a(8) =311a(9) =607a(10) =2309a(11) =5881a(12) =7681a(13) =8779a(14) =56929a(15) =74357a(16) =84979a(17) =4667387a(18) =5334157a(19) =20276141a(20) =26483123a(21) =2171218163a(22) =10779703787