cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

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%I A080167 #5 May 10 2015 07:43:34
%S A080167 5,17,37,41,73,89,137,149,157,173,181,257,269,277,281,293,313,317,337,
%T A080167 349,353,373,521,541,557,569,577,593,601,613,617,641,653,661,673,677,
%U A080167 701,709,733,757,761,1033,1049,1061,1069,1093,1097,1109,1117,1129,1153
%N A080167 Primes beginning with '10' and ending with '01' in binary representation.
%C A080167 Intersection of A002144 and A080165.
%H A080167 Harvey P. Dale, <a href="/A080167/b080167.txt">Table of n, a(n) for n = 1..1000</a>
%e A080167 A000040(12)=37 -> '100101' therefore 37 is a term.
%t A080167 Select[Prime[Range[200]],Take[IntegerDigits[#,2],2]=={1,0}&&Take[ IntegerDigits[#,2],-2]=={0,1}&] (* _Harvey P. Dale_, May 10 2015 *)
%Y A080167 Cf. A004676, A074832, A030101.
%K A080167 nonn,base
%O A080167 1,1
%A A080167 _Reinhard Zumkeller_, Feb 04 2003