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 A175373 #2 Mar 30 2012 17:40:19 %S A175373 1,5,9,9,9,9,9,9,9,9,9,9,9,9,9,9,13,21,21,21,21,21,21,21,21,21,21,21, %T A175373 21,21,21,21,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25, %U A175373 25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25 %N A175373 Partial sums of A175372. %C A175373 Number of integer pairs (x,y) satisfying x^4+y^4 <= n, any -n <= x,y <=n. %e A175373 a(6) = 9 counts (x,y) = (-1,-1), (-1,0), (-1,1), (0,-1), (0,0), (0,1), (1,-1), (1,0) and (1,1). %Y A175373 Cf. A057655, A175363. %K A175373 nonn %O A175373 0,2 %A A175373 _R. J. Mathar_, Apr 24 2010