Primes of the form 2*n^2+1.

Terms

a(0) =3a(1) =19a(2) =73a(3) =163a(4) =883a(5) =1153a(6) =1459a(7) =1801a(8) =2179a(9) =2593a(10) =3529a(11) =4051a(12) =8713a(13) =10369a(14) =11251a(15) =15139a(16) =17299a(17) =18433a(18) =19603a(19) =20809a(20) =22051a(21) =30259a(22) =34849a(23) =36451a(24) =46819a(25) =48673a(26) =52489a(27) =62659a(28) =69193a(29) =71443