Numbers k such that 3*5^(2*k) - 3*5^k + 1 is prime.

Terms

a(0) =1a(1) =2a(2) =8a(3) =25a(4) =41a(5) =66a(6) =108a(7) =318a(8) =498a(9) =546a(10) =557a(11) =846a(12) =3780a(13) =26370a(14) =29305a(15) =31482a(16) =32905