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 A175364 #2 Mar 30 2012 17:40:19 %S A175364 1,5,9,21,25,25,45,45,53,69,77,77,101,109,117,137,149,157,157,185,193, %T A175364 205,213,233,257,257,265,281,305,313,329,337,361,385,393,401,409,445, %U A175364 453,473,481,489,525,541,549,561,577,597,621,637,653,661,665,717,725 %N A175364 A175363(n^2). %C A175364 Number of integer pairs (x,y) satisfying |x|^3+|y|^3 <= n^2, any -n <= x,y <=n. A variant of A000328 where the norm is substituted by sums-of-cubes of Cartesian coordinates in the square lattice. %K A175364 nonn %O A175364 0,2 %A A175364 _R. J. Mathar_, Apr 24 2010