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 A184242 #9 Jun 02 2025 03:27:12 %S A184242 1,1,1,1,2,2,2,1,5,3,3,2,4,4,6,1,7,8,6,3,18,8,7,2,18,7,24,4,10,21,20, %T A184242 1,31,13,22,8,27,15,29,3,31,38,30,8,65,20,27,2,50,32,68,7,41,59,61,4, %U A184242 85,30,46,21,63,40,108,1,72,78,74,13,98,73,59,8,83,55,151,15,92,104,85,3,171 %N A184242 Number of strings of numbers x(i=1..4) in 0..n with sum i^2*x(i)^2 equal to n^2*16. %C A184242 Row 4 of A184240 %H A184242 R. H. Hardin, <a href="/A184242/b184242.txt">Table of n, a(n) for n = 1..200</a> %e A184242 All solutions for n=5 %e A184242 ..0....0 %e A184242 ..0....0 %e A184242 ..4....0 %e A184242 ..4....5 %K A184242 nonn %O A184242 1,5 %A A184242 _R. H. Hardin_ Jan 10 2011