%I
%S 1,1973,3181,3967,4889,5617,7747,7913,8363,8587,8923,11437,11993,
%T 12517,13285,13973,14101,14231,14489,16117,16769,16849,18391,18611,
%U 19583,19819,21289,21683,21701,21893,22147,22817,22949,23651,24943,25829,27197,27437
%N Odd numbers n that are neither of the form p + 2^k nor of the form p  2^k with 2^k < n, and p prime.
%C Odd n such that for all 2^k < n the numbers n + 2^k and n  2^k are composite.
%o (MAGMA) lst:=[]; for n in [1..27437 by 2] do t:=0; k:=0; while 2^k lt n do if IsPrime(n2^k) or IsPrime(n+2^k) then t:=1; break; end if; k+:=1; end while; if IsZero(t) then Append(~lst, n); end if; end for; lst;
%Y Cf. A076335.
%Y Subsequence of A006285. Supersequence of A256163.
%Y A153352 gives the primes.
%K nonn
%O 1,2
%A _Arkadiusz Wesolowski_, Mar 12 2015
