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 A175371 #2 Mar 30 2012 17:40:19 %S A175371 1,9,89,617,2137,4897,10625,19777,34625,55217,84441,123385,174329, %T A175371 243145,325929,429329,557169,708961,894625,1110209,1363561,1656505, %U A175371 1994281 %N A175371 a(n) = A175369(n^3). %C A175371 Number of integer 4-tuples (x,y,z,u) satisfying |x|^3+|y|^3+|z|^3+|u|^3 <= n^3, -n <= x,y,z,u <= n. %C A175371 An associated sequence with the number of 4-tuples satisfying x^2+y^2+z^2+u^2 <= n^3 starts 1, 9, 321, 3777, 20185, 77313, 230897,... %K A175371 nonn %O A175371 0,2 %A A175371 _R. J. Mathar_, Apr 24 2010