Primes of the form m = 4^i + 4^j - 1, where i > j >= 0.

Terms

a(0) =19a(1) =67a(2) =79a(3) =271a(4) =1039a(5) =1087a(6) =1279a(7) =4099a(8) =4111a(9) =4159a(10) =5119a(11) =16447a(12) =20479a(13) =65539a(14) =65551a(15) =65599a(16) =81919a(17) =262147a(18) =262399a(19) =263167a(20) =266239a(21) =1049599a(22) =1114111a(23) =1310719a(24) =4194319a(25) =4194559a(26) =4195327a(27) =16842751a(28) =17825791a(29) =67108879