Primes p such that p + 2, 18*p^2 + 1, and 18*(p+2)^2 + 1 are all primes.

Terms

a(0) =29a(1) =107a(2) =431a(3) =1487a(4) =1607a(5) =2141a(6) =5501a(7) =10139a(8) =10271a(9) =17579a(10) =22481a(11) =23057a(12) =27479a(13) =32369a(14) =36341a(15) =36929a(16) =38447a(17) =55931a(18) =57527a(19) =69827a(20) =75539a(21) =78539a(22) =79691a(23) =81047a(24) =81971a(25) =84179a(26) =86027a(27) =89561a(28) =93761a(29) =102059