Primes p such that p+12, (p+1)/2, and (p+13)/2 are also prime.

Terms

a(0) =61a(1) =661a(2) =1201a(3) =4261a(4) =5101a(5) =6121a(6) =6361a(7) =12421a(8) =12541a(9) =12841a(10) =13921a(11) =15361a(12) =17041a(13) =18301a(14) =19801a(15) =21661a(16) =26821a(17) =31321a(18) =36901a(19) =47521a(20) =54121a(21) =55921a(22) =56101a(23) =71341a(24) =80701a(25) =83221a(26) =87421a(27) =91381a(28) =101161a(29) =107761