Primes p such that 1000p-1, 1000p-3, 1000p-7 and 1000p-9 are all prime.

Terms

a(0) =10193a(1) =13217a(2) =34457a(3) =36767a(4) =57773a(5) =76631a(6) =103043a(7) =157823a(8) =191033a(9) =194813a(10) =212243a(11) =229799a(12) =242273a(13) =242867a(14) =249377a(15) =256889a(16) =261563a(17) =264071a(18) =361511a(19) =457871a(20) =486293a(21) =502841a(22) =508517a(23) =647837a(24) =653621a(25) =694409a(26) =697511a(27) =777437a(28) =798143a(29) =825611