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 A068537 #7 Feb 21 2024 22:49:10 %S A068537 2,5,8,9,10,13,16,17,18,20,25,26,28,29,32,33,34,35,37,40,41,45,50,52, %T A068537 53,54,58,61,64,65,68,72,73,74,80,82,85,89,90,91,97,98,100,101,104, %U A068537 106,109,113,116,117,122,125,126,128,129,130,133,136,137,145,146 %N A068537 Numbers which can be written as the sum of 2 like powers (x^n + y^n; n>1 & x,y>0). %e A068537 2 = 1^2 + 1^2; 5 = 1^2 + 2^2; 8 = 2^2 + 2^2; 9 = 1^3 + 2^3; 10 = 1^2 + 3^2; 13 = 2^2 + 3^2; 16 = 2^3 + 2^3; 17 = 1^2 + 4^2; ..... 33 = 1^5 + 2^5; etc... %Y A068537 Superset of A000404, A003325, A003336, A003347, A003358, A003369, A003380, A003391. %K A068537 nonn %O A068537 1,1 %A A068537 Shawn Schafer (coolrelish(AT)hotmail.com), Mar 22 2002 %E A068537 More terms from _Michel Marcus_, Aug 07 2013 %E A068537 More terms from _Sean A. Irvine_, Feb 21 2024