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%I A226399 #9 Mar 23 2024 17:31:56
%S A226399 2,12,20,32,48,64,88,112,136,168,208,232,280,328,360,408,472,520,592,
%T A226399 640,688,768,856,904,984,1080,1152,1224,1336,1400,1520,1616,1696,1824,
%U A226399 1920,1992,2136,2280,2376,2472,2632,2728,2896,3016,3112,3288,3472,3568,3736
%N A226399 Number of nondecreasing -n..n vectors of length 2 whose dot product with some nonincreasing -n..n vector equals 2.
%H A226399 R. H. Hardin, <a href="/A226399/b226399.txt">Table of n, a(n) for n = 1..210</a>
%e A226399 Some solutions for n=3:
%e A226399   1  -2  -2  -3  -1   2  -2  -3  -1   0  -1   1   1  -3  -2  -2
%e A226399   2   1  -1  -1   2   2  -2  -2   0   1  -1   1   3   2   0   3
%Y A226399 Row 2 of A226398.
%K A226399 nonn
%O A226399 1,1
%A A226399 _R. H. Hardin_, Jun 06 2013

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