Primes p with A047967(p) also prime.

Terms

a(0) =13a(1) =23a(2) =43a(3) =53a(4) =71a(5) =83a(6) =107a(7) =257a(8) =269a(9) =313a(10) =1093a(11) =2659a(12) =2851a(13) =3527a(14) =8243a(15) =20173a(16) =20717a(17) =24329a(18) =26161a(19) =26237a(20) =31583a(21) =53611a(22) =60719a(23) =74717a(24) =83401a(25) =118259a(26) =118369a(27) =130817a(28) =133811a(29) =145109