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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 2

%I

%S 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 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 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 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 Row 4 of A184240

%H R. H. Hardin, <a href="/A184242/b184242.txt">Table of n, a(n) for n = 1..200</a>

%e All solutions for n=5

%e ..0....0

%e ..0....0

%e ..4....0

%e ..4....5

%K nonn

%O 1,5

%A _R. H. Hardin_ Jan 10 2011

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Last modified January 19 01:11 EST 2021. Contains 340262 sequences. (Running on oeis4.)