Numbers k such that 30*k - 1, 30*k + 1, 30*k^2 - 1 and 30*k^2 + 1 are all prime.

Terms

a(0) =1a(1) =14a(2) =118a(3) =232a(4) =538a(5) =720a(6) =1155a(7) =1253a(8) =2821a(9) =3151a(10) =6161a(11) =6238a(12) =6916a(13) =7428a(14) =7827a(15) =9009a(16) =9521a(17) =9933a(18) =10284a(19) =10779a(20) =11661a(21) =12348a(22) =13663a(23) =13811a(24) =14092a(25) =14938a(26) =15273a(27) =16323a(28) =16457a(29) =17116