Primes p such that 2p^2-1, 3p^2-2, 4p^2-3, and 5p^2-4 are also prime.

Terms

a(0) =17569a(1) =43781a(2) =70321a(3) =229561a(4) =251231a(5) =426131a(6) =426551a(7) =453289a(8) =635051a(9) =727201a(10) =729791a(11) =741709a(12) =944689a(13) =981091a(14) =1015309a(15) =1078081a(16) =1128761a(17) =1228429a(18) =1231229a(19) =1282961a(20) =1289149a(21) =1302349a(22) =1351099a(23) =1723481a(24) =1763159a(25) =1823779a(26) =2078339a(27) =2260889a(28) =2336519a(29) =2357879