Primes p such that p^2 + 6, p^2 + 12 and p^2 + 18 are all prime.

Terms

a(0) =5a(1) =19a(2) =61a(3) =971a(4) =1451a(5) =2711a(6) =3061a(7) =3449a(8) =6011a(9) =15139a(10) =15241a(11) =21821a(12) =27851a(13) =39839a(14) =51749a(15) =62459a(16) =75679a(17) =76081a(18) =82591a(19) =97001a(20) =121039a(21) =121441a(22) =122299a(23) =135581a(24) =161569a(25) =162671a(26) =196681a(27) =196831a(28) =200881a(29) =214741