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%I #9 Mar 23 2024 17:30:57
%S 4,23,74,130,240,358,566,766,1112,1408,1916,2362,3066,3656,4564,5348,
%T 6544,7522,9014,10184,11966,13430,15602,17366,19820,21858,24814,27150,
%U 30580,33202,37118,40226,44656,48144,52814,56696,62264,66626,72796,77444
%N Number of nondecreasing -n..n vectors of length 3 whose dot product with some nondecreasing -n..n vector equals 3.
%H R. H. Hardin, <a href="/A226411/b226411.txt">Table of n, a(n) for n = 1..127</a>
%e Some solutions for n=3:
%e -2 0 2 2 -1 -3 -3 -1 -3 -3 0 -3 -3 -1 -2 -3
%e -2 2 2 3 1 -3 -2 0 -1 -1 1 -3 -3 -1 -1 0
%e 3 3 3 3 3 -3 3 3 3 2 2 -2 1 2 0 2
%Y Row 3 of A226410.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 06 2013
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