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 A115898 #5 Jul 15 2021 21:24:02 %S A115898 1,2,3,13,17,36,56,78,80,83,86,119,135,178,185,226,227,235,378,422, %T A115898 443,579,629,651,910,1230,1277,1331,1344,1432,1644,1734,1740,1758, %U A115898 1772,1794,1827,1847,1973,2021,2730,2874,2878,2979,2981,3169,3229 %N A115898 Numbers k such that sigma(k) + prime(k) is a palindrome. %e A115898 sigma(1344) + prime(1344) = 4064 + 11087 = 15151. %Y A115898 Cf. A115895, A115899. %K A115898 nonn,base %O A115898 1,2 %A A115898 _Giovanni Resta_, Feb 06 2006