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 A102803 #4 Oct 02 2013 15:57:58 %S A102803 50,69,71,81,87,90,96,99,102,109,112,115,118,133,135,143,145,149,151, %T A102803 154,161,164,181,187,190,197,199,206,209,212,215,218,226,228,232,235, %U A102803 242,243,245,251,254,257,261,263,264,266,270,273,279,281 %N A102803 Let f(n) be the minimal number of distinct nonzero tetrahedral numbers that add to n (or -1 if n is not a sum of distinct tetrahedral numbers); sequence gives numbers n for which f(n) = 4. %Y A102803 Cf. A000292, A104246, A102795, etc. %K A102803 nonn %O A102803 1,1 %A A102803 _Jud McCranie_, Feb 26 2005