Proth primes: primes of the form k*2^m + 1 with odd k < 2^m, m >= 1.

Terms

a(0) =3a(1) =5a(2) =13a(3) =17a(4) =41a(5) =97a(6) =113a(7) =193a(8) =241a(9) =257a(10) =353a(11) =449a(12) =577a(13) =641a(14) =673a(15) =769a(16) =929a(17) =1153a(18) =1217a(19) =1409a(20) =1601a(21) =2113a(22) =2689a(23) =2753a(24) =3137a(25) =3329a(26) =3457a(27) =4481a(28) =4993a(29) =6529