Numbers j such that (3^j)*(47#) -1 is prime.

Terms

a(0) =1a(1) =8a(2) =20a(3) =25a(4) =67a(5) =77a(6) =85a(7) =137a(8) =244a(9) =392a(10) =540a(11) =604a(12) =605a(13) =650a(14) =991a(15) =1054a(16) =1122a(17) =1132a(18) =1158a(19) =1231a(20) =1303a(21) =1481a(22) =1502a(23) =2474a(24) =2820a(25) =3250a(26) =3376a(27) =3499a(28) =3537a(29) =4000