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 A074499 #3 Mar 30 2012 17:36:39 %S A074499 3,6,9,10,11,12,13,14,16,17,18,19,20,21,22,24,25,26,27,28,29,30,32,33, %T A074499 34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56, %U A074499 57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79 %N A074499 Sum of three perfect powers. %C A074499 It appears that every number >= 10 (and 4 and 7) is a sum of 4 perfect powers. %Y A074499 Cf. A070049 (sum of two perfect powers), A001597 (perfect powers). %K A074499 easy,nonn %O A074499 1,1 %A A074499 _Rick L. Shepherd_, Aug 24 2002