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A080167 Primes beginning with '10' and ending with '01' in binary representation. 2

%I #5 May 10 2015 07:43:34

%S 5,17,37,41,73,89,137,149,157,173,181,257,269,277,281,293,313,317,337,

%T 349,353,373,521,541,557,569,577,593,601,613,617,641,653,661,673,677,

%U 701,709,733,757,761,1033,1049,1061,1069,1093,1097,1109,1117,1129,1153

%N Primes beginning with '10' and ending with '01' in binary representation.

%C Intersection of A002144 and A080165.

%H Harvey P. Dale, <a href="/A080167/b080167.txt">Table of n, a(n) for n = 1..1000</a>

%e A000040(12)=37 -> '100101' therefore 37 is a term.

%t Select[Prime[Range[200]],Take[IntegerDigits[#,2],2]=={1,0}&&Take[ IntegerDigits[#,2],-2]=={0,1}&] (* _Harvey P. Dale_, May 10 2015 *)

%Y Cf. A004676, A074832, A030101.

%K nonn,base

%O 1,1

%A _Reinhard Zumkeller_, Feb 04 2003

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)