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 A102799 #4 Oct 02 2013 15:57:58 %S A102799 1,2,3,4,5,6,8,9,10,11,12,14,15,18,20,21,22,24,25,28,30,31,34,35,36, %T A102799 37,39,40,41,43,44,45,46,49,50,55,56,57,58,59,60,61,64,65,66,67,70,71, %U A102799 74,75,76,77,80,84,85,86,88,89,90,91,92,94,95,96,98,101,104,105 %N A102799 Let f(n) = A104246(n) be the minimal number of nonzero tetrahedral numbers that add to n; sequence gives numbers n for which f(n) <= 3. %Y A102799 Cf. A000292, A104246, A102795, etc. %K A102799 nonn %O A102799 1,2 %A A102799 _Jud McCranie_, Feb 26 2005