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.
%I A080168 #7 Jul 28 2021 11:14:35
%S A080168 3,7,31,59,103,107,127,199,211,223,227,239,251,419,431,439,443,463,
%T A080168 467,479,487,491,499,503,787,811,823,827,839,859,863,883,887,907,911,
%U A080168 919,947,967,971,983,991,1019,1543,1559,1567,1571,1579,1583,1607,1619,1627
%N A080168 Primes beginning and ending with '11' in binary representation.
%C A080168 Intersection of A002145 and A080166.
%H A080168 Harvey P. Dale, <a href="/A080168/b080168.txt">Table of n, a(n) for n = 1..1000</a>
%e A080168 A000040(17)=59 -> '111011' therefore 59 is a term.
%t A080168 Select[Prime[Range[300]],Take[IntegerDigits[#,2],2]==Take[ IntegerDigits[ #,2],-2]=={1,1}&] (* _Harvey P. Dale_, Jul 28 2021 *)
%Y A080168 Cf. A004676, A074832, A030101.
%K A080168 nonn,base
%O A080168 1,1
%A A080168 _Reinhard Zumkeller_, Feb 04 2003