Primes of the form 2^i + 2^j + 1, i > j > 0.

Terms

a(0) =7a(1) =11a(2) =13a(3) =19a(4) =37a(5) =41a(6) =67a(7) =73a(8) =97a(9) =131a(10) =137a(11) =193a(12) =521a(13) =577a(14) =641a(15) =769a(16) =1033a(17) =1153a(18) =2053a(19) =2081a(20) =2113a(21) =4099a(22) =4129a(23) =8209a(24) =12289a(25) =16417a(26) =18433a(27) =32771a(28) =32801a(29) =32833