Primes p such that 4+p, 4+p^2, 4+p^3, 4+p^5, and 4+p^7 are all prime.

Terms

a(0) =7a(1) =469363a(2) =2552713a(3) =3378103a(4) =6595597a(5) =6629683a(6) =39837517a(7) =46024063a(8) =46167307a(9) =97371007a(10) =97629403a(11) =105528217a(12) =136983307a(13) =169483033a(14) =202953613a(15) =213792193a(16) =216520987a(17) =216738043a(18) =221705647a(19) =304033927a(20) =317502193a(21) =359133553