Numbers k such that 1 + (x + x^3 + x^5 + x^7 + ... + x^(2*k+1)) is irreducible over GF(2).

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =13a(6) =23a(7) =27a(8) =31a(9) =37a(10) =63a(11) =69a(12) =117a(13) =119a(14) =173a(15) =219a(16) =223a(17) =247a(18) =307a(19) =363a(20) =383a(21) =495a(22) =695a(23) =987a(24) =2519a(25) =3919a(26) =4633a(27) =6537a(28) =8881a(29) =12841