Primes of the form p^4 + p^2 - 1 where p is prime.

Terms

a(0) =19a(1) =89a(2) =28729a(3) =130681a(4) =1875529a(5) =3420649a(6) =7893289a(7) =112561489a(8) =373320361a(9) =777824209a(10) =1506177289a(11) =3262865761a(12) =4362536449a(13) =5887416169a(14) =8882968249a(15) =9355048561a(16) =18141261409a(17) =21517809409a(18) =22898196361a(19) =27983100241a(20) =35152312609a(21) =62001747001a(22) =67123223641a(23) =85662460441a(24) =89526324889a(25) =100469663929