Least prime factor of (2n+1)^(2n+1)+2.

Terms

a(0) =3a(1) =29a(2) =53a(3) =3a(4) =59a(5) =97a(6) =3a(7) =23a(8) =7a(9) =3a(10) =31a(11) =19a(12) =3a(13) =5a(14) =51131a(15) =3a(16) =5a(17) =2003a(18) =3a(19) =229a(20) =139a(21) =3a(23) =5a(24) =3a(25) =179a(26) =5a(27) =3a(28) =43a(29) =7a(30) =3