Primes prime(k) such that 2^k - prime(k) is also prime.

Terms

a(0) =5a(1) =31a(2) =67a(3) =89a(4) =101a(5) =283a(6) =503a(7) =1039a(8) =1129a(9) =2069a(10) =3457a(11) =5641a(12) =45763a(13) =71483a(14) =86599a(15) =112921a(16) =161411a(17) =210173a(18) =211007a(19) =232741a(20) =245269a(21) =479029a(22) =1078589