Primes of form n^4 + n^2 - 1.

Terms

a(0) =19a(1) =89a(2) =271a(3) =4159a(4) =10099a(5) =20879a(6) =28729a(7) =38611a(8) =50849a(9) =130681a(10) =391249a(11) =457651a(12) =1049599a(13) =1187009a(14) =1501849a(15) =1875529a(16) =3113459a(17) =3420649a(18) =3750031a(19) =4102649a(20) =6767801a(21) =7893289a(22) =9837631a(23) =10559249a(24) =11319859a(25) =14780179a(26) =17854849a(27) =21385999a(28) =31646249