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%I #3 Jun 04 2013 08:58:14
%S 2,22,74,193,419,921,1640,2951,4945,7927,12208,18546,26895,38603,
%T 54098,74397,100548,134530,176581,229884,295652,376281,474241,593586,
%U 735301,905513,1106878,1344022,1621789,1947335,2323081,2759434
%N Number of nondecreasing -3..3 vectors of length n whose dot product with some other -3..3 vector equals n
%C Column 3 of A226340
%e Some solutions for n=3
%e .-2...-3....0...-1...-3...-1...-2...-3...-3...-2...-3...-2...-2....0...-2...-3
%e .-1...-1....1...-1...-2...-1....1...-2....2...-2...-3....1....2....0....1...-3
%e ..2....2....2....0...-1....3....1....0....2....3...-2....2....3....1....3....3
%K nonn
%O 1,1
%A _R. H. Hardin_ Jun 04 2013