%I #5 Jun 06 2013 06:34:58

%S 2,12,12,48,38,128,92,282,182,540,322,948,540,1546,836,2394,1244,3544,

%T 1790,5070,2488,7036,3366,9530,4478,12626,5818,16428,7446,21022,9402,

%U 26524,11706,33032,14400,40678,17564,49570,21186,59854,25352,71650,30116

%N Number of nondecreasing -2..2 vectors of length n whose dot product with some nonincreasing -2..2 vector equals n

%C Column 2 of A226398

%H R. H. Hardin, <a href="/A226393/b226393.txt">Table of n, a(n) for n = 1..45</a>

%e All solutions for n=3

%e ..1....1...-2...-1....0...-1...-2....0...-2...-1....1...-2

%e ..1....1...-1...-1....1...-1...-2....1...-2....2....2...-1

%e ..1....2....0...-1....2....0....1....1...-1....2....2...-1

%K nonn

%O 1,1

%A _R. H. Hardin_ Jun 06 2013