Primes of the form : (p-n)/(n+1)=prime and (n+1)*p+n=prime. n=3.

Terms

a(0) =11a(1) =31a(2) =47a(3) =151a(4) =271a(5) =359a(6) =439a(7) =599a(8) =719a(9) =1031a(10) =1759a(11) =1871a(12) =2287a(13) =2711a(14) =2767a(15) =2879a(16) =3719a(17) =3911a(18) =4079a(19) =5119a(20) =5527a(21) =5791a(22) =6199a(23) =6271a(24) =6991a(25) =7151a(26) =7607a(27) =7727a(28) =8447a(29) =8647