Primes p having a record value of least k such that 4*k^2*p^2 + 1 is prime.

Terms

a(0) =2a(1) =11a(2) =17a(3) =19a(4) =283a(5) =919a(6) =1093a(7) =1787a(8) =9521a(9) =181243a(10) =257611a(11) =274243a(12) =857419a(13) =1644871a(14) =3111607a(15) =6027277a(16) =10452083a(17) =14490703a(18) =36102991a(19) =47352131a(20) =121431767a(21) =171236887a(22) =339934099a(23) =584698243a(24) =1177972427a(25) =3008777311a(26) =3091999399