Sorted list of prime factors of numbers of the form 7^(2^m) + 2^(2^m) with m >= 0.

Terms

a(0) =3a(1) =17a(2) =53a(3) =97a(4) =257a(5) =449a(6) =2417a(7) =7681a(8) =8513a(9) =65537a(10) =89633a(11) =114689a(12) =339121a(13) =876097a(14) =1321729a(15) =1454081a(16) =2572289a(17) =4638721a(18) =5463041a(19) =7340033a(20) =27688961a(21) =47047681a(22) =62177153a(23) =93847553a(24) =113418241a(25) =374734849a(26) =3731619841a(27) =13037142017a(28) =13555990529a(29) =13951408129