Smallest positive integer m such that (m^(2^n) + 1)/2 is prime.

Terms

a(0) =3a(1) =3a(2) =3a(3) =9a(4) =3a(5) =3a(6) =3a(7) =113a(8) =331a(9) =513a(10) =827a(11) =799a(12) =3291a(13) =5041a(14) =71a(15) =220221a(16) =23891a(17) =11559a(18) =187503a(19) =35963