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 A180407 #2 Mar 30 2012 17:35:07 %S A180407 113,131,179,191,199,311,313,337,353,373,733,739,797,919,937,971,991, %T A180407 1031,1033,1091,1097,1103,1109,1181,1301,1439,1471,1499,1741,1811, %U A180407 1901,1949,3011,3169,3301,3343,3347,3389,3433,3583,3853,7187,7433,7457,7547 %N A180407 Primes from sequence A091367 whose reverse is still a prime. %e A180407 a(5)=199 since 1^2+9^2+9^2=1+81+81=163 is a prime and reverse(199)=911 has the same property. %Y A180407 Cf. A091367 %K A180407 nonn,base %O A180407 1,1 %A A180407 _Carmine Suriano_, Sep 02 2010