The prime terms of A225563.

Terms

a(0) =3a(1) =5a(2) =7a(3) =11a(4) =13a(5) =17a(6) =31a(7) =41a(8) =61a(9) =97a(10) =103a(11) =137a(12) =193a(13) =241a(14) =257a(15) =409a(16) =641a(17) =769a(18) =1021a(19) =1361a(20) =1543a(21) =5441a(22) =6529a(23) =7681a(24) =8161a(25) =12289a(26) =15361a(27) =17477a(28) =26113a(29) =30841