Numbers k such that 2^k - prime(k) is prime.

Terms

a(0) =3a(1) =11a(2) =19a(3) =24a(4) =26a(5) =61a(6) =96a(7) =175a(8) =189a(9) =312a(10) =483a(11) =741a(12) =4741a(13) =7082a(14) =8421a(15) =10695a(16) =14802a(17) =18824a(18) =18892a(19) =20655a(20) =21653a(21) =39937a(22) =84160