Numbers k such that k^2 - 7 is prime.

Terms

a(0) =3a(1) =6a(2) =12a(3) =18a(4) =24a(5) =36a(6) =48a(7) =54a(8) =60a(9) =66a(10) =90a(11) =96a(12) =108a(13) =132a(14) =138a(15) =156a(16) =162a(17) =174a(18) =186a(19) =192a(20) =204a(21) =216a(22) =222a(23) =228a(24) =240a(25) =246a(26) =270a(27) =306a(28) =318a(29) =330