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%I #13 May 20 2024 02:08:36
%S 0,5,9,17,27,33,51,65,85,99,119,129,165,195,231,257,297,325,365,387,
%T 427,455,495,513,585,645,717,771,843,903,975,1025,1105,1161,1241,1285,
%U 1365,1421,1501,1539,1619,1675,1755,1799,1879,1935,2015,2049,2193,2313,2457
%N Nonnegative integers that, when written in binary, are palindromes with a middle run of 0's.
%H John Tyler Rascoe, <a href="/A175543/b175543.txt">Table of n, a(n) for n = 1..10000</a>
%t fQ[n_] := Block[{id = IntegerDigits[n, 2]}, id == Reverse@ id && id[[ Ceiling[ Length@ id/2] ]] == 0]; Select[ Range[0, 2564], fQ@# &] (* _Robert G. Wilson v_, Jun 27 2010 *)
%Y Cf. A006995, A175544.
%K base,nonn
%O 1,2
%A _Leroy Quet_, Jun 23 2010
%E a(9)-a(51) from _Robert G. Wilson v_, Jun 27 2010